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@jacekradko jacekradko commented Sep 30, 2025

Description

When fetching a new Session token, broadcast the token value to other tabs so they can warm their in-memory Session Token cache with the most recent token.

Checklist

  • pnpm test runs as expected.
  • pnpm build runs as expected.
  • (If applicable) JSDoc comments have been added or updated for any package exports
  • (If applicable) Documentation has been updated

Type of change

  • 🐛 Bug fix
  • 🌟 New feature
  • 🔨 Breaking change
  • 📖 Refactoring / dependency upgrade / documentation
  • other:

Summary by CodeRabbit

  • New Features

    • Memory-backed session token cache with cross-tab sync using BroadcastChannel; TokenId utilities exported.
  • Bug Fixes

    • Prevent duplicate network requests for concurrent token fetches; safer cross-tab sign-out and broadcast data handling.
  • Chores

    • Added a new build variant, dev script, and bundlewatch entry; runtime deprecation notice for legacy localStorage-based broadcast fallback.
  • Tests

    • Extensive unit and integration tests for token caching, broadcasting, expiration, and multi-session isolation.
  • Removed

    • Automatic global initialization for the browser entry point.

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changeset-bot bot commented Sep 30, 2025

🦋 Changeset detected

Latest commit: 392cc40

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 19 packages
Name Type
@clerk/clerk-js Minor
@clerk/shared Patch
@clerk/chrome-extension Patch
@clerk/clerk-expo Patch
@clerk/agent-toolkit Patch
@clerk/astro Patch
@clerk/backend Patch
@clerk/elements Patch
@clerk/expo-passkeys Patch
@clerk/express Patch
@clerk/fastify Patch
@clerk/nextjs Patch
@clerk/nuxt Patch
@clerk/react-router Patch
@clerk/clerk-react Patch
@clerk/remix Patch
@clerk/tanstack-react-start Patch
@clerk/testing Patch
@clerk/vue Patch

Not sure what this means? Click here to learn what changesets are.

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clerk-js-sandbox Ready Ready Preview Comment Oct 8, 2025 2:25am

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coderabbitai bot commented Sep 30, 2025

Walkthrough

Switches cross-tab messaging to the native BroadcastChannel, implements a memory-backed Session token cache with expiration/leeway/timeouts and cross-tab sync, dedupes concurrent Session.getToken requests and broadcasts resolved tokens, adds TokenId utilities and tests, adds a channel build variant, and removes global init from the chips browser entry.

Changes

Cohort / File(s) Summary
Broadcast channel migration & deprecation
packages/clerk-js/src/core/clerk.ts, packages/shared/src/localStorageBroadcastChannel.ts, .changeset/slick-ducks-bet.md
Replace LocalStorageBroadcastChannel usage with native BroadcastChannel typing/initialization; remove exported ClerkCoreBroadcastChannelEvent type; update listener signatures to use event.data?.type; add runtime/JSDoc deprecation for LocalStorageBroadcastChannel and a changeset documenting deprecation.
Session token cache implementation
packages/clerk-js/src/core/tokenCache.ts
Add MemoryTokenCache with expiration, leeway, timeout management, BroadcastChannel-based cross-tab synchronization, TokenCacheKey utilities, SessionTokenEvent payload, and APIs clear()/close()/size(); extend TokenCache/entry/value shapes and expose SessionTokenCache.
Session token retrieval flow
packages/clerk-js/src/core/resources/Session.ts
Update Session.getToken to use TokenId, dedupe concurrent requests by caching resolvers, add logging, emit TokenUpdate/SessionTokenResolved, update lastActiveToken when applicable, and return `token.getRawString()
TokenId utilities
packages/clerk-js/src/utils/tokenId.ts, packages/clerk-js/src/utils/index.ts, packages/clerk-js/src/utils/__tests__/tokenId.test.ts
Add TokenId helpers (build, parse, extractTemplate) and ParsedTokenId interface; re-export via utils/index.ts; add comprehensive unit tests for build/parse/extract edge cases.
Unit tests: token cache & session
packages/clerk-js/src/core/__tests__/tokenCache.test.ts, packages/clerk-js/src/core/resources/__tests__/Session.test.ts
Add extensive tests for BroadcastChannel handling (mocked), JWT validation, monotonicity, expiration/leeway, pending resolvers, concurrency dedupe, cache lifecycle (clear/close), and timer-controlled assertions.
Integration tests: session token cache
integration/tests/session-token-cache/single-session.test.ts, integration/tests/session-token-cache/multi-session.test.ts
Add Playwright integration tests validating cross-tab BroadcastChannel token sharing, cache pre-warm (no duplicate network requests), multi-session isolation, and per-tab session independence.
Build/config: channel variant & flags
packages/clerk-js/rspack.config.js, packages/clerk-js/src/global.d.ts, packages/clerk-js/vitest.config.mts, packages/clerk-js/package.json, packages/clerk-js/bundlewatch.config.json, integration/presets/envs.ts, .changeset/every-dryers-refuse.md
Add clerk.channel.browser build variant and __BUILD_VARIANT_CHANNEL__ flag; wire variant into prod/dev builds and tests; add dev:channel script and bundlewatch entry; add env preset for BroadcastChannel; add changeset describing token pre-warm behavior.
Chips browser entry cleanup
packages/clerk-js/src/index.chips.browser.ts
Remove global Clerk singleton initialization, renderer binding, script-attribute/global-variable config parsing, and HMR acceptance from the chips browser entry.
Minor test tidy
packages/clerk-js/src/ui/elements/PhoneInput/__tests__/useFormattedPhoneNumber.test.ts
Consolidate @testing-library/react imports (style-only change).

Sequence Diagram(s)

sequenceDiagram
  participant Tab1 as Tab1 (Page A)
  participant Cache1 as MemoryTokenCache A
  participant API as Backend
  participant BC as BroadcastChannel "clerk"
  participant Tab2 as Tab2 (Page B)
  participant Cache2 as MemoryTokenCache B

  Note over Tab1,API: Request token flow
  Tab1->>Cache1: get(tokenId, leeway)
  alt cache miss or expired
    Cache1-->>Tab1: undefined
    Tab1->>API: fetch token
    API-->>Tab1: token (jwt with iat/exp/sid)
    Tab1->>Cache1: set({key, token, createdAt})
    Cache1-->>BC: postMessage(SessionTokenEvent)
  else cache hit (fresh/pending)
    Cache1-->>Tab1: entry (value or promise)
  end

  Note over BC,Cache2: Cross-tab sync
  BC-->>Cache2: message(SessionTokenEvent)
  Cache2->>Cache2: validate tokenId & jwt (iat/exp/sid)
  Cache2->>Cache2: apply if newer (no rebroadcast)
  Tab2->>Cache2: get(tokenId, leeway)
  Cache2-->>Tab2: token (served from cache, no network)
Loading

Estimated code review effort

🎯 4 (Complex) | ⏱️ ~60 minutes

Poem

I’m a busy rabbit, ears alert and quick,
I pass tokens softly, a hop and a tick.
I cache with care, give five seconds of play,
Broadcast the carrot so no tab needs to stray.
Thump—two burrows synced, no needless trick. 🥕

Pre-merge checks and finishing touches

❌ Failed checks (1 warning)
Check name Status Explanation Resolution
Title Check ⚠️ Warning The title “feat(clerk-js): Dedupe getToken requests” only references the new promise-based deduplication of concurrent token fetches, but the pull request’s primary purpose is broadcasting session tokens across tabs and overhauling cross-tab token cache synchronization; the title thus does not fully capture or summarize the main changes in the changeset. Please revise the title to clearly reflect the central feature of cross-tab session token broadcasting and cache pre-warming, while optionally mentioning the deduplication enhancement as a secondary detail.
✅ Passed checks (2 passed)
Check name Status Explanation
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Docstring Coverage ✅ Passed No functions found in the changes. Docstring coverage check skipped.
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packages/clerk-js/src/core/clerk.ts (2)
packages/shared/src/index.ts (1)
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packages/clerk-js/src/utils/debug.ts (1)
  • debugLogger (150-179)
packages/clerk-js/src/core/resources/Session.ts (5)
packages/clerk-js/src/utils/debug.ts (1)
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packages/clerk-js/src/core/tokenCache.ts (1)
  • SessionTokenCache (178-178)
packages/clerk-js/src/core/events.ts (2)
  • eventBus (31-31)
  • events (6-14)
packages/clerk-js/src/core/clerk.ts (1)
  • ClerkCoreBroadcastChannelEvent (167-178)
packages/clerk-js/src/core/resources/Token.ts (1)
  • Token (6-53)
packages/clerk-js/src/core/tokenCache.ts (1)
packages/clerk-js/src/utils/debug.ts (1)
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Profile and optimize critical paths
Validate all inputs and sanitize outputs
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**/*.{ts,tsx}

📄 CodeRabbit inference engine (.cursor/rules/development.mdc)

Use proper TypeScript error types

**/*.{ts,tsx}: Always define explicit return types for functions, especially public APIs
Use proper type annotations for variables and parameters where inference isn't clear
Avoid any type - prefer unknown when type is uncertain, then narrow with type guards
Use interface for object shapes that might be extended
Use type for unions, primitives, and computed types
Prefer readonly properties for immutable data structures
Use private for internal implementation details
Use protected for inheritance hierarchies
Use public explicitly for clarity in public APIs
Prefer readonly for properties that shouldn't change after construction
Prefer composition and interfaces over deep inheritance chains
Use mixins for shared behavior across unrelated classes
Implement dependency injection for loose coupling
Let TypeScript infer when types are obvious
Use const assertions for literal types: as const
Use satisfies operator for type checking without widening
Use mapped types for transforming object types
Use conditional types for type-level logic
Leverage template literal types for string manipulation
Use ES6 imports/exports consistently
Use default exports sparingly, prefer named exports
Use type-only imports: import type { ... } from ...
No any types without justification
Proper error handling with typed errors
Consistent use of readonly for immutable data
Proper generic constraints
No unused type parameters
Proper use of utility types instead of manual type construction
Type-only imports where possible
Proper tree-shaking friendly exports
No circular dependencies
Efficient type computations (avoid deep recursion)

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packages/clerk-js/src/utils/debug.ts (1)
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[error] 2744-2793: expected a semicolon to end the class property, but found none

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[error] 2793-2793: Expected an identifier, a string literal, a number literal, a private field name, or a computed name but instead found ')'.

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⚠️ Outside diff range comments (1)
packages/clerk-js/src/core/clerk.ts (1)

545-547: Prefer native BroadcastChannel; fall back to LocalStorage for non‑sensitive use

To avoid persisting token payloads in storage, use native BroadcastChannel when available. Keep LocalStorageBroadcastChannel only as a fallback and avoid sending raw tokens when on the fallback.

-    this.#broadcastChannel = new LocalStorageBroadcastChannel('clerk');
-    this.__internal_broadcastChannel = this.#broadcastChannel;
+    const channel =
+      typeof BroadcastChannel !== 'undefined'
+        ? (new BroadcastChannel('clerk') as unknown as ClerkBroadcastChannel)
+        : new LocalStorageBroadcastChannel<ClerkCoreBroadcastChannelEvent>('clerk');
+    this.#broadcastChannel = channel;
+    this.__internal_broadcastChannel = channel;

Remember to import ClerkBroadcastChannel type from @clerk/types and update the #broadcastChannel field type.

🧹 Nitpick comments (3)
packages/types/src/clerk.ts (2)

65-77: Event union looks good; add brief docs for stability

Please add short JSDoc on the event and payload fields (especially semantics of template/organizationId/tokenId) to keep the public surface self‑documented.


78-81: Expose removeEventListener to avoid listener leaks

The channel interface only offers addEventListener/postMessage. Add a matching removeEventListener signature so consumers can unsubscribe cleanly and align with native BroadcastChannel.

 export interface ClerkBroadcastChannel {
   addEventListener(eventName: 'message', listener: (e: MessageEvent<ClerkCoreBroadcastChannelEvent>) => void): void;
   postMessage(data: ClerkCoreBroadcastChannelEvent): void;
+  removeEventListener?(eventName: 'message', listener: (e: MessageEvent<ClerkCoreBroadcastChannelEvent>) => void): void;
+  // Optional close for parity with native BroadcastChannel
+  close?(): void;
 }
packages/clerk-js/src/core/clerk.ts (1)

263-264: Type the public prop to the interface to decouple implementation

Use the exported ClerkBroadcastChannel type (or ClerkInterface['__internal_broadcastChannel']) instead of the concrete LocalStorageBroadcastChannel to keep flexibility and ensure interface compliance.

-  public __internal_broadcastChannel?: LocalStorageBroadcastChannel<ClerkCoreBroadcastChannelEvent>;
+  public __internal_broadcastChannel?: ClerkBroadcastChannel;

Also change #broadcastChannel’s type accordingly.

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**/*.{js,jsx,ts,tsx}

📄 CodeRabbit inference engine (.cursor/rules/development.mdc)

**/*.{js,jsx,ts,tsx}: All code must pass ESLint checks with the project's configuration
Follow established naming conventions (PascalCase for components, camelCase for variables)
Maintain comprehensive JSDoc comments for public APIs
Use dynamic imports for optional features
All public APIs must be documented with JSDoc
Provide meaningful error messages to developers
Include error recovery suggestions where applicable
Log errors appropriately for debugging
Lazy load components and features when possible
Implement proper caching strategies
Use efficient data structures and algorithms
Profile and optimize critical paths
Validate all inputs and sanitize outputs
Implement proper logging with different levels

Files:

  • packages/types/src/clerk.ts
  • packages/clerk-js/src/core/clerk.ts
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Prefer composition and interfaces over deep inheritance chains
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Support multiple Clerk environment variables (CLERK_, NEXT_PUBLIC_CLERK_, etc.) for configuration.

Files:

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  • packages/clerk-js/src/core/resources/Session.ts
🧬 Code graph analysis (2)
packages/clerk-js/src/core/clerk.ts (2)
packages/types/src/clerk.ts (1)
  • ClerkCoreBroadcastChannelEvent (65-76)
packages/clerk-js/src/utils/debug.ts (1)
  • debugLogger (150-179)
packages/clerk-js/src/core/resources/Session.ts (6)
packages/clerk-js/src/utils/debug.ts (1)
  • debugLogger (150-179)
packages/clerk-js/src/core/tokenCache.ts (1)
  • SessionTokenCache (178-178)
packages/clerk-js/src/core/events.ts (2)
  • eventBus (31-31)
  • events (6-14)
packages/types/src/clerk.ts (1)
  • ClerkCoreBroadcastChannelEvent (65-76)
packages/clerk-js/src/core/resources/Token.ts (1)
  • Token (6-53)
packages/types/src/token.ts (1)
  • TokenResource (5-9)
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🔇 Additional comments (4)
packages/types/src/clerk.ts (1)

901-906: Typed channel replaces any — LGTM

Replacing any with a concrete ClerkBroadcastChannel tightens the surface as requested earlier.

packages/clerk-js/src/core/resources/Session.ts (2)

358-375: Nice: guarded document access for non‑DOM runtimes

The computed isActiveTab removes SSR/RN hazards from earlier.


441-463: No milliseconds conversion needed for createdAt
TokenCacheEntry.createdAt is measured in seconds and the cache uses Math.floor(Date.now()/1000) to compute time—token.jwt.claims.iat already provides seconds. Drop the suggested * 1000 conversion.

Likely an incorrect or invalid review comment.

packages/clerk-js/src/core/clerk.ts (1)

2757-2780: Good: broadcast handler now respects sessionId targeting

Scoping updates to payload.sessionId prevents poisoning another session’s cache in multi‑session scenarios.

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Actionable comments posted: 2

♻️ Duplicate comments (1)
packages/clerk-js/src/core/resources/Session.ts (1)

358-375: SSR-safe tab detection — good fix.

The document guards avoid crashes in non‑DOM runtimes and address the prior critical.

🧹 Nitpick comments (11)
packages/shared/src/index.ts (1)

28-28: Public surface expansion: mark intent and stability.

Exporting ClerkBroadcastChannel makes it part of the shared public API. Add JSDoc on the class (in clerkBroadcastChannel.ts) clarifying that it’s internal/experimental to avoid consumers taking a hard dependency on it. As per coding guidelines.

packages/types/src/clerk.ts (2)

65-77: Do not expose raw JWT in public types; mark these as internal.

ClerkCoreBroadcastChannelEvent includes tokenRaw. Since this file is public types, either:

  • Mark the type as internal, or
  • Drop tokenRaw from the public surface and keep it in an internal namespace.

At minimum, add JSDoc to make intent clear.

Apply JSDoc annotations:

+/**
+ * Cross-tab internal events for Clerk core.
+ * @internal
+ */
 export type ClerkCoreBroadcastChannelEvent =
   | { type: 'signout' }
   | {
       type: 'session_token';
       payload: {
         organizationId?: string | null;
         sessionId: string;
         template?: string;
         tokenId: string;
-        tokenRaw: string;
+        /**
+         * Raw JWT string. Sensitive — only used on secure in-memory channels.
+         * @internal
+         */
+        tokenRaw: string;
       };
     };

78-82: Consider delivery acknowledgment from postMessage.

Today postMessage returns void, and the implementation drops session_token when native BroadcastChannel is unavailable. Returning boolean (delivered or dropped) would let callers log accurately and potentially fallback.

Proposed signature change:

-export interface ClerkBroadcastChannel {
-  addEventListener(eventName: 'message', listener: (e: MessageEvent<ClerkCoreBroadcastChannelEvent>) => void): void;
-  close(): void;
-  postMessage(data: ClerkCoreBroadcastChannelEvent): void;
-}
+export interface ClerkBroadcastChannel {
+  addEventListener(eventName: 'message', listener: (e: MessageEvent<ClerkCoreBroadcastChannelEvent>) => void): void;
+  close(): void;
+  /**
+   * Returns true if the message was delivered to a native channel; false if dropped.
+   */
+  postMessage(data: ClerkCoreBroadcastChannelEvent): boolean;
+}
packages/clerk-js/src/core/resources/Session.ts (2)

148-149: Cache key delimiter: minor collision risk.

Joining with - can theoretically collide if template or org IDs contain -. Consider a sentinel delimiter or tuple-like join.

Example:

-    return [this.id, template, resolvedOrganizationId].filter(Boolean).join('-');
+    return [this.id, template ?? '', resolvedOrganizationId ?? ''].join('|');

465-496: Accurate logging and delivery semantics for broadcast.

Session logs “Broadcasting token update” unconditionally, but ClerkBroadcastChannel drops session_token when native BroadcastChannel is unavailable. Either:

  • Gate the log on delivery (have postMessage return boolean and only log on true), or
  • Move the responsibility to the channel to log when a message is dropped.

Also consider broadcasting only minimal, non‑secret metadata when dedupe (not pre‑warm) is sufficient.

Example (if postMessage returns boolean):

-    debugLogger.info(
-      'Broadcasting token update to other tabs',
-      { tokenId, template, organizationId, sessionId: this.id },
-      'session',
-    );
-
-    const message: ClerkCoreBroadcastChannelEvent = {
+    const message: ClerkCoreBroadcastChannelEvent = {
       type: 'session_token',
       payload: {
         organizationId,
         sessionId: this.id,
         template,
         tokenId,
         tokenRaw,
       },
     };
-
-    broadcastChannel.postMessage(message);
+    if (broadcastChannel.postMessage(message)) {
+      debugLogger.info(
+        'Broadcasted token update to other tabs',
+        { tokenId, template, organizationId, sessionId: this.id },
+        'session',
+      );
+    } else {
+      debugLogger.debug('Token broadcast dropped (no native channel)', { tokenId }, 'session');
+    }
packages/shared/src/clerkBroadcastChannel.ts (4)

3-16: Avoid duplicating event types; import from @clerk/types and implement the contract

Keep the runtime and public types in lockstep to prevent drift. Import ClerkCoreBroadcastChannelEvent (and the interface) from @clerk/types and have this class implement it.

+import type {
+  ClerkCoreBroadcastChannelEvent,
+  ClerkBroadcastChannel as ClerkBroadcastChannelContract,
+} from '@clerk/types';
-
-type ClerkCoreBroadcastChannelEvent =
-  | { type: 'signout' }
-  | {
-      type: 'session_token';
-      payload: {
-        organizationId?: string | null;
-        sessionId: string;
-        template?: string;
-        tokenId: string;
-        tokenRaw: string;
-      };
-    };
@@
-export class ClerkBroadcastChannel {
+export class ClerkBroadcastChannel implements ClerkBroadcastChannelContract {

As per coding guidelines (packages should export types; prefer type-only imports).


54-61: Emit a debug when dropping session_token due to lack of native BroadcastChannel

Right now, the event is silently ignored when native BroadcastChannel isn’t available. A low‑level log helps diagnose why cross‑tab token warming didn’t occur.

       case 'session_token':
-        if (this.nativeChannel) {
-          this.nativeChannel.postMessage(event);
-        }
+        if (this.nativeChannel) {
+          this.nativeChannel.postMessage(event);
+        } else {
+          // Intentionally not falling back to localStorage for sensitive data
+          console.debug('[ClerkBroadcastChannel] session_token dropped: BroadcastChannel unavailable');
+        }
         break;

47-52: Support listener removal (or return a disposer) to prevent accumulation

You maintain a Set of listeners but offer no way to remove one. Add removeEventListener (keeps interface compatibility) so internal callers can unsubscribe.

   public addEventListener = (eventName: 'message', listener: Listener): void => {
     if (eventName !== 'message') {
       return;
     }
     this.listeners.add(listener);
   };
+
+  // Not part of the public interface but useful internally
+  public removeEventListener = (eventName: 'message', listener: Listener): void => {
+    if (eventName !== 'message') {
+      return;
+    }
+    this.listeners.delete(listener);
+  };

23-37: Add JSDoc on public methods

Public APIs should include brief JSDoc for addEventListener, postMessage, and close (include event shapes, security note about token events using native channel only).

Also applies to: 47-75

packages/clerk-js/src/core/clerk.ts (2)

262-263: Document __internal_broadcastChannel as unstable/internal

This is publicly visible; add JSDoc (e.g., “@internal” or “@experimental”) to set expectations and avoid external reliance on unstable behavior.


2544-2546: Close broadcast channel on page unload
Add a createBeforeUnloadTracker hook in packages/clerk-js/src/core/clerk.ts after instantiating the channel to call this.#broadcastChannel.close() and free resources:

 this.#pageLifecycle = createPageLifecycle();
 this.#broadcastChannel = new ClerkBroadcastChannel('clerk');
 this.__internal_broadcastChannel = this.#broadcastChannel;
 this.#setupBrowserListeners();
+ this.#beforeUnloadTracker = createBeforeUnloadTracker(() => {
+   this.#broadcastChannel.close();
+ });
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**/*.{ts,tsx}

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Let TypeScript infer when types are obvious
Use const assertions for literal types: as const
Use satisfies operator for type checking without widening
Use mapped types for transforming object types
Use conditional types for type-level logic
Leverage template literal types for string manipulation
Use ES6 imports/exports consistently
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No any types without justification
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No circular dependencies
Efficient type computations (avoid deep recursion)

Files:

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  • packages/clerk-js/src/core/resources/Session.ts
  • packages/shared/src/clerkBroadcastChannel.ts
**/*.{js,ts,tsx,jsx}

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Files:

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  • packages/shared/src/index.ts
  • packages/clerk-js/src/core/clerk.ts
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🧬 Code graph analysis (4)
packages/types/src/clerk.ts (2)
packages/shared/src/clerkBroadcastChannel.ts (1)
  • ClerkBroadcastChannel (23-76)
packages/shared/src/index.ts (1)
  • ClerkBroadcastChannel (28-28)
packages/clerk-js/src/core/clerk.ts (3)
packages/shared/src/clerkBroadcastChannel.ts (1)
  • ClerkBroadcastChannel (23-76)
packages/types/src/clerk.ts (1)
  • ClerkBroadcastChannel (78-82)
packages/clerk-js/src/utils/debug.ts (1)
  • debugLogger (150-179)
packages/clerk-js/src/core/resources/Session.ts (6)
packages/clerk-js/src/utils/debug.ts (1)
  • debugLogger (150-179)
packages/clerk-js/src/core/tokenCache.ts (1)
  • SessionTokenCache (178-178)
packages/clerk-js/src/core/events.ts (2)
  • eventBus (31-31)
  • events (6-14)
packages/types/src/clerk.ts (1)
  • ClerkCoreBroadcastChannelEvent (65-76)
packages/clerk-js/src/core/resources/Token.ts (1)
  • Token (6-53)
packages/types/src/token.ts (1)
  • TokenResource (5-9)
packages/shared/src/clerkBroadcastChannel.ts (2)
packages/types/src/clerk.ts (2)
  • ClerkCoreBroadcastChannelEvent (65-76)
  • ClerkBroadcastChannel (78-82)
packages/shared/src/index.ts (2)
  • ClerkBroadcastChannel (28-28)
  • LocalStorageBroadcastChannel (27-27)
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🔇 Additional comments (3)
packages/types/src/clerk.ts (1)

902-909: Approve typed internal channel update
Replaced any with ClerkBroadcastChannel; verified all assignments and references in clerk.ts and Session.ts align with this interface.

packages/clerk-js/src/core/clerk.ts (2)

228-229: Channel field type update looks good

Switch to ClerkBroadcastChannel aligns with the new transport.


2753-2780: Ignore outdated cleanup suggestion

Listener correctly handles signout and session_token, resolving sessions by sessionId and skipping non-matching ones to prevent cross-session poisoning. The remaining LocalStorageBroadcastChannel code in packages/shared and the tokenUpdate comment in Session.ts are intentional and outside this PR’s scope.

Likely an incorrect or invalid review comment.

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Actionable comments posted: 3

🧹 Nitpick comments (5)
packages/shared/src/__tests__/ClerkBroadcastChannel.test.ts (1)

238-245: Strengthen close semantics: also detach listeners and close localStorage channel

Currently tests only assert native close and listener clearing. To prevent leaks, the implementation should also remove the native listener and close the localStorage channel. Add assertions here once implementation is updated.

Proposed implementation change (in packages/shared/src/ClerkBroadcastChannel.ts):

   public close = (): void => {
-    this.nativeChannel?.close();
-    this.listeners.clear();
+    // Detach native listener before closing
+    if (this.nativeChannel) {
+      this.nativeChannel.removeEventListener('message', this.handleNativeMessage);
+      this.nativeChannel.close();
+    }
+    // Close localStorage channel and detach its listener
+    // (LocalStorageBroadcastChannel should expose close())
+    // @ts-expect-error: ensure LocalStorageBroadcastChannel has close()
+    this.localStorageChannel.close?.();
+    this.listeners.clear();
   };

And extend this test block with:

   it('closes native BroadcastChannel when available', () => {
     const channel = new ClerkBroadcastChannel(channelName);

     channel.close();

     expect(nativeBroadcastChannelMock.close).toHaveBeenCalled();
+    expect(nativeBroadcastChannelMock.removeEventListener).toHaveBeenCalledWith(
+      'message',
+      expect.any(Function),
+    );
   });

Also applies to: 254-279

packages/clerk-js/src/core/clerk.ts (3)

228-229: Channel lifecycle: consider closing on teardown/pagehide

We create a long‑lived channel but never close it. Consider closing on pagehide/unload or when Clerk is disposed to detach listeners.

 this.#pageLifecycle = createPageLifecycle();
+// Optionally:
+window.addEventListener('pagehide', () => this.#broadcastChannel?.close(), { once: true });

262-263: Public API surface: document internal broadcaster

This adds a public member. Please add JSDoc marking it internal/unstable to avoid ecosystem reliance.

/** @internal For SDK internal wiring and tests. Subject to change without notice. */
public __internal_broadcastChannel?: ClerkBroadcastChannel;

2754-2779: Session‑scoped token updates: correct and safe

The handler scopes updates by payload.sessionId and skips when no match is present; good fix for multi‑session tabs. Consider adding organizationId to the log context for completeness.

-          { tokenId: data.payload.tokenId, sessionId: data.payload.sessionId },
+          { tokenId: data.payload.tokenId, sessionId: data.payload.sessionId, organizationId: data.payload.organizationId ?? null },
packages/shared/src/ClerkBroadcastChannel.ts (1)

72-75: Tear down the LocalStorage listener on close().

We add a message listener to LocalStorageBroadcastChannel in the constructor but never remove it here. That keeps this instance reachable (and still reacting to signout messages) after close() and prevents GC. Please mirror the native cleanup with a matching removeEventListener/close on the localStorage channel before clearing listeners.

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**/*.{js,jsx,ts,tsx}

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**/*.{js,jsx,ts,tsx}: All code must pass ESLint checks with the project's configuration
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Include error recovery suggestions where applicable
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Implement proper caching strategies
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Profile and optimize critical paths
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Use interface for object shapes that might be extended
Use type for unions, primitives, and computed types
Prefer readonly properties for immutable data structures
Use private for internal implementation details
Use protected for inheritance hierarchies
Use public explicitly for clarity in public APIs
Prefer readonly for properties that shouldn't change after construction
Prefer composition and interfaces over deep inheritance chains
Use mixins for shared behavior across unrelated classes
Implement dependency injection for loose coupling
Let TypeScript infer when types are obvious
Use const assertions for literal types: as const
Use satisfies operator for type checking without widening
Use mapped types for transforming object types
Use conditional types for type-level logic
Leverage template literal types for string manipulation
Use ES6 imports/exports consistently
Use default exports sparingly, prefer named exports
Use type-only imports: import type { ... } from ...
No any types without justification
Proper error handling with typed errors
Consistent use of readonly for immutable data
Proper generic constraints
No unused type parameters
Proper use of utility types instead of manual type construction
Type-only imports where possible
Proper tree-shaking friendly exports
No circular dependencies
Efficient type computations (avoid deep recursion)

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  • packages/shared/src/__tests__/ClerkBroadcastChannel.test.ts
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  • packages/clerk-js/src/core/clerk.ts
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Support multiple Clerk environment variables (CLERK_, NEXT_PUBLIC_CLERK_, etc.) for configuration.

Files:

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  • packages/shared/src/__tests__/ClerkBroadcastChannel.test.ts
  • packages/shared/src/index.ts
  • packages/clerk-js/src/core/clerk.ts
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Use tree-shaking friendly exports

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**/index.ts

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Use index.ts files for clean imports but avoid deep barrel exports

Avoid barrel files (index.ts re-exports) as they can cause circular dependencies

Files:

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🧬 Code graph analysis (3)
packages/shared/src/ClerkBroadcastChannel.ts (2)
packages/types/src/clerk.ts (1)
  • ClerkCoreBroadcastChannelEvent (65-76)
packages/shared/src/index.ts (2)
  • ClerkBroadcastChannel (28-28)
  • LocalStorageBroadcastChannel (27-27)
packages/shared/src/__tests__/ClerkBroadcastChannel.test.ts (1)
packages/shared/src/ClerkBroadcastChannel.ts (1)
  • ClerkBroadcastChannel (23-76)
packages/clerk-js/src/core/clerk.ts (3)
packages/shared/src/ClerkBroadcastChannel.ts (1)
  • ClerkBroadcastChannel (23-76)
packages/types/src/clerk.ts (1)
  • ClerkBroadcastChannel (78-82)
packages/clerk-js/src/utils/debug.ts (1)
  • debugLogger (150-179)
🪛 GitHub Check: Static analysis
packages/shared/src/__tests__/ClerkBroadcastChannel.test.ts

[failure] 44-44:
'channel' is assigned a value but never used. Allowed unused vars must match /^_/u


[failure] 2-2:
'LocalStorageBroadcastChannel' is defined but never used


[failure] 2-2:
'LocalStorageBroadcastChannel' is defined but never used. Allowed unused vars must match /^_/u

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🔇 Additional comments (2)
packages/shared/src/index.ts (1)

28-28: Public export looks good; ensure docs/types are aligned

The named export is tree‑shake friendly and path casing matches the file. Please add/update JSDoc in the class file so this public API is discoverable from @clerk/shared and ensure types reflect it across packages.

packages/clerk-js/src/core/clerk.ts (1)

2544-2546: Broadcast channel initialization is correct and well‑scoped

Creating a single channel and wiring __internal_broadcastChannel keeps diagnostics accessible while avoiding duplicate listeners.

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Actionable comments posted: 1

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Prefer composition and interfaces over deep inheritance chains
Use mixins for shared behavior across unrelated classes
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Use satisfies operator for type checking without widening
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Actionable comments posted: 1

♻️ Duplicate comments (2)
packages/shared/src/__tests__/ClerkBroadcastChannel.test.ts (2)

1-1: Previous lint issue resolved.

The earlier unused import of LocalStorageBroadcastChannel is no longer present. Nothing to do.


43-49: Constructor variable now used; prior “unused var” feedback addressed.

channel is referenced in the assertion; the earlier warning is resolved.

🧹 Nitpick comments (2)
packages/shared/src/__tests__/ClerkBroadcastChannel.test.ts (2)

6-9: Strengthen test typings (avoid any); define minimal mock types.

Tighten types for mocks to satisfy ESLint “no-explicit-any” and improve IDE help.

Apply this diff:

@@
 describe('ClerkBroadcastChannel', () => {
-  let localStorageMock: any;
-  let nativeBroadcastChannelMock: any;
-  let originalBroadcastChannel: any;
+  type MockBroadcastChannel = Pick<BroadcastChannel, 'addEventListener' | 'removeEventListener' | 'postMessage' | 'close'> & {
+    addEventListener: jest.Mock;
+    removeEventListener: jest.Mock;
+    postMessage: jest.Mock;
+    close: jest.Mock;
+  };
+  type LocalStorageMock = Pick<Storage, 'getItem' | 'setItem' | 'removeItem'> & {
+    getItem: jest.Mock;
+    setItem: jest.Mock;
+    removeItem: jest.Mock;
+  };
+
+  let localStorageMock: LocalStorageMock;
+  let nativeBroadcastChannelMock: MockBroadcastChannel;
+  let originalBroadcastChannel: typeof BroadcastChannel | undefined;
@@
-    nativeBroadcastChannelMock = {
+    nativeBroadcastChannelMock = {
       addEventListener: jest.fn(),
       close: jest.fn(),
       postMessage: jest.fn(),
       removeEventListener: jest.fn(),
-    };
+    } as unknown as MockBroadcastChannel;
@@
-    originalBroadcastChannel = global.BroadcastChannel;
-    global.BroadcastChannel = jest.fn(() => nativeBroadcastChannelMock) as any;
+    originalBroadcastChannel = global.BroadcastChannel;
+    global.BroadcastChannel = jest.fn(() => nativeBroadcastChannelMock) as unknown as typeof BroadcastChannel;

Also applies to: 26-35


225-233: Also assert removeEventListener is called on close for proper cleanup.

Verifies we detach the native listener, not just close the channel.

Apply this diff:

   it('closes native BroadcastChannel when available', () => {
     const channel = new ClerkBroadcastChannel(channelName);

     channel.close();

     expect(nativeBroadcastChannelMock.close).toHaveBeenCalled();
+    expect(nativeBroadcastChannelMock.removeEventListener).toHaveBeenCalledWith('message', expect.any(Function));
   });
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Include error recovery suggestions where applicable
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Use type for unions, primitives, and computed types
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Use private for internal implementation details
Use protected for inheritance hierarchies
Use public explicitly for clarity in public APIs
Prefer readonly for properties that shouldn't change after construction
Prefer composition and interfaces over deep inheritance chains
Use mixins for shared behavior across unrelated classes
Implement dependency injection for loose coupling
Let TypeScript infer when types are obvious
Use const assertions for literal types: as const
Use satisfies operator for type checking without widening
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🧬 Code graph analysis (1)
packages/shared/src/__tests__/ClerkBroadcastChannel.test.ts (1)
packages/shared/src/ClerkBroadcastChannel.ts (1)
  • ClerkBroadcastChannel (23-81)
🪛 Gitleaks (8.28.0)
packages/shared/src/__tests__/ClerkBroadcastChannel.test.ts

[high] 94-94: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.

(generic-api-key)


[high] 112-112: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.

(generic-api-key)


[high] 165-165: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.

(generic-api-key)


[high] 212-212: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.

(generic-api-key)


[high] 255-255: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.

(generic-api-key)


[high] 277-277: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.

(generic-api-key)


[high] 321-321: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.

(generic-api-key)


[high] 338-338: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.

(generic-api-key)

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Actionable comments posted: 0

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⚠️ Outside diff range comments (1)
packages/shared/src/localStorageBroadcastChannel.ts (1)

46-64: Guard all window access and add SSR fallback

  • Initialize eventTarget with typeof window !== 'undefined' ? window : new EventTarget() instead of unconditionally using window.
  • In setupLocalStorageListener(), return early if typeof window === 'undefined'.
  • In close(), also guard window.removeEventListener behind typeof window !== 'undefined'.
🧹 Nitpick comments (3)
packages/shared/src/localStorageBroadcastChannel.ts (3)

16-19: Return an unsubscribe to prevent listener leaks.

There’s no way to remove the bound wrapper you add to window, which can leak handlers across re-initializations. Return a cleanup function from addEventListener that removes the exact bound listener.

-  public addEventListener = (eventName: 'message', listener: Listener<E>): void => {
-    this.eventTarget.addEventListener(this.prefixEventName(eventName), e => {
-      listener(e as MessageEvent<E>);
-    });
-  };
+  public addEventListener = (
+    eventName: 'message',
+    listener: Listener<E>
+  ): (() => void) => {
+    const type = this.prefixEventName(eventName);
+    const handler = (e: Event) => listener(e as MessageEvent<E>);
+    this.eventTarget.addEventListener(type, handler as EventListener);
+    return () => this.eventTarget.removeEventListener(type, handler as EventListener);
+  };

Also add a short JSDoc explaining the returned disposer. As per coding guidelines.


21-26: Expand close() (optional): drain message listeners too.

If you adopt an unsubscribe-returning API, consider tracking them and draining in close() for RAII-style cleanup; otherwise document that close() only detaches the storage listener.

// class field (outside this hunk)
private readonly unsubscribers = new Set<() => void>();

// when adding a listener
const unsub = this.addEventListener('message', listener);
this.unsubscribers.add(unsub);

// in close()
for (const unsub of this.unsubscribers) unsub();
this.unsubscribers.clear();

42-44: Use a delimiter in the prefixed event name.

Avoid accidental collisions like "__lsbc__abmessage" vs "__lsbc__a" + "bmessage" by adding a separator.

-  private prefixEventName(eventName: string): string {
-    return this.channelKey + eventName;
-  }
+  private prefixEventName(eventName: string): string {
+    return `${this.channelKey}:${eventName}`;
+  }
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**/*.{ts,tsx}: Always define explicit return types for functions, especially public APIs
Use proper type annotations for variables and parameters where inference isn't clear
Avoid any type - prefer unknown when type is uncertain, then narrow with type guards
Use interface for object shapes that might be extended
Use type for unions, primitives, and computed types
Prefer readonly properties for immutable data structures
Use private for internal implementation details
Use protected for inheritance hierarchies
Use public explicitly for clarity in public APIs
Prefer readonly for properties that shouldn't change after construction
Prefer composition and interfaces over deep inheritance chains
Use mixins for shared behavior across unrelated classes
Implement dependency injection for loose coupling
Let TypeScript infer when types are obvious
Use const assertions for literal types: as const
Use satisfies operator for type checking without widening
Use mapped types for transforming object types
Use conditional types for type-level logic
Leverage template literal types for string manipulation
Use ES6 imports/exports consistently
Use default exports sparingly, prefer named exports
Use type-only imports: import type { ... } from ...
No any types without justification
Proper error handling with typed errors
Consistent use of readonly for immutable data
Proper generic constraints
No unused type parameters
Proper use of utility types instead of manual type construction
Type-only imports where possible
Proper tree-shaking friendly exports
No circular dependencies
Efficient type computations (avoid deep recursion)

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🔇 Additional comments (2)
packages/shared/src/localStorageBroadcastChannel.ts (2)

8-8: Good: keep a handle for cleanup.

Storing storageListener enables deterministic removal in close(). LGTM.


15-15: Typed payload preserved — resolves prior concern.

Casting to MessageEvent<E> restores the generic payload type for listeners. Nice.

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Actionable comments posted: 6

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⚠️ Outside diff range comments (1)
packages/clerk-js/src/core/tokenCache.ts (1)

294-307: Fix expiry scheduling: tokens can outlive exp due to timer based on full lifetime (exp−iat) from insertion time

Schedule eviction using remainingSeconds (exp−now), and align age math by setting createdAt = iat once the token resolves. This prevents serving expired tokens and makes get()’s remainingSeconds computation correct.

       const expiresAt = newToken.jwt.claims.exp;
       const issuedAt = newToken.jwt.claims.iat;
-      const expiresIn: Seconds = expiresAt - issuedAt;
-
-      // Mutate cached value and set expirations
-      value.expiresIn = expiresIn;
-      timer = setTimeout(deleteKey, expiresIn * 1000);
-
-      // Teach ClerkJS not to block the exit of the event loop when used in Node environments.
-      // More info at https://nodejs.org/api/timers.html#timeoutunref
-      if (typeof timer.unref === 'function') {
-          timer.unref();
-      }
+      const expiresIn: Seconds = expiresAt - issuedAt; // full lifetime
+      const nowSeconds = Math.floor(Date.now() / 1000);
+      const remainingSeconds: Seconds = Math.max(0, expiresAt - nowSeconds); // time left
+
+      // Mutate cached value and set expirations
+      value.expiresIn = expiresIn;
+      value.createdAt = issuedAt; // align age with JWT iat
+      value.timeout = setTimeout(deleteKey, remainingSeconds * 1000);
+
+      // Teach ClerkJS not to block the exit of the event loop when used in Node environments.
+      // More info at https://nodejs.org/api/timers.html#timeoutunref
+      if (typeof value.timeout?.unref === 'function') {
+        value.timeout.unref();
+      }
🧹 Nitpick comments (11)
packages/clerk-js/src/core/__tests__/tokenCache.test.ts (4)

1-1: Type the mock channel against the public interface for better safety

Import and use the ClerkBroadcastChannel interface to avoid any and catch signature drift.

-import type { ClerkCoreBroadcastChannelEvent } from '@clerk/types';
+import type { ClerkBroadcastChannel, ClerkCoreBroadcastChannelEvent } from '@clerk/types';
@@
-  let mockBroadcastChannel: {
-    addEventListener: ReturnType<typeof vi.fn>;
-    close: ReturnType<typeof vi.fn>;
-    postMessage: ReturnType<typeof vi.fn>;
-  };
+  let mockBroadcastChannel: Pick<
+    ClerkBroadcastChannel,
+    'addEventListener' | 'close' | 'postMessage'
+  >;

Also applies to: 9-13


16-29: Ensure mocks are fully reset between tests

You recreate the mock object per test (good). Optionally also call vi.clearAllMocks() in afterEach for isolation when more spies are added later.

Also applies to: 31-34


155-167: Avoid brittle dependency on a specific iat value

This test assumes a fixed iat in mockJwt. Compute the older JWT relative to the cached entry to future‑proof the test.

-// mockJwt has iat: 1666648250, so create an older one with iat: 1666648190 (60 seconds earlier)
-const olderJwt = ...
+const cachedEntryAfterNewer = SessionTokenCache.get({ tokenId: 'session_123' })!;
+const newerIat = cachedEntryAfterNewer.createdAt!;
+const olderJwt = makeFakeJwt({ iat: newerIat - 60, exp: newerIat + 300 });

Also applies to: 171-176


36-55: Add a test for mismatched sessionId to constrain cache pollution

Currently we test tokenId format mismatches; add a case where payload.sessionId !== expected session to ensure we drop it (or at least don’t warm unrelated keys).

Would you like me to draft the additional test using a different sessionId and asserting size/keys unchanged?

Also applies to: 199-209

packages/clerk-js/src/core/resources/Session.ts (1)

398-407: Background‑tab dedupe: consider a short wait-for-broadcast before fetching

To reduce duplicate network calls across tabs, in non‑active tabs you can delay fetch briefly (e.g., 250–500ms) and resolve early if a broadcast warms the cache.

Sketch:

  • If !isActiveTab && !skipCache && !cachedEntry, await a Promise.race between:
    • a once('session_token') broadcast that populates SessionTokenCache, and
    • a timeout (e.g., 300ms).
  • Proceed to fetch only if the cache is still cold.

Happy to draft a concrete patch if you want to try this.

Also applies to: 419-429

packages/clerk-js/src/core/clerk.ts (2)

2545-2549: Attach/detach the broadcast channel on lifecycle transitions

You create and attach the channel during load; add cleanup on page hide/unload to avoid dangling listeners and to detach from SessionTokenCache.

 this.#pageLifecycle = createPageLifecycle();
@@
 this.#broadcastChannel = new ClerkBroadcastChannel('clerk');
 this.__internal_broadcastChannel = this.#broadcastChannel;
 SessionTokenCache.attachBroadcastChannel(this.#broadcastChannel);
+
+// Cleanup on lifecycle end
+this.#pageLifecycle?.onPageHide(() => {
+  SessionTokenCache.attachBroadcastChannel(null);
+  this.#broadcastChannel?.close();
+  this.#broadcastChannel = null;
+  this.__internal_broadcastChannel = undefined;
+});

229-230: Document new public surface __internal_broadcastChannel

It’s public (even if internal). Add a brief JSDoc to meet “All public APIs must be documented” and clarify behavior.

Example:

/**
 * Internal: cross-tab event channel used by Clerk for signout and token sync.
 * Not part of the public API surface; subject to change without notice.
 */
public __internal_broadcastChannel?: ClerkBroadcastChannel;

Also applies to: 263-264

packages/clerk-js/src/core/tokenCache.ts (4)

102-121: Guard against near‑expiry using absolute remaining time

After aligning createdAt = iat, the current math is consistent. As a robustness improvement, compute remainingSeconds directly to avoid any drift if createdAt is ever inconsistent.

-    const elapsedSeconds = nowSeconds - value.createdAt;
-    const expiresSoon = value.expiresIn !== undefined && value.expiresIn - elapsedSeconds < (leeway || 1) + SYNC_LEEWAY;
+    const remainingSeconds =
+      value.expiresIn !== undefined ? value.createdAt + value.expiresIn - nowSeconds : undefined;
+    const expiresSoon =
+      remainingSeconds !== undefined && remainingSeconds < (leeway || 1) + SYNC_LEEWAY;

7-11: Channel type should support removal for proper cleanup

Consider adding an optional removeEventListener to allow detaching without closing the channel.

 type ClerkBroadcastChannel = {
   addEventListener(eventName: 'message', listener: (e: MessageEvent<ClerkCoreBroadcastChannelEvent>) => void): void;
+  removeEventListener?(
+    eventName: 'message',
+    listener: (e: MessageEvent<ClerkCoreBroadcastChannelEvent>) => void,
+  ): void;
   close(): void;
   postMessage(data: ClerkCoreBroadcastChannelEvent): void;
 };

If implemented, prefer removeEventListener over close() in re‑attach logic.


23-28: Add JSDoc for exported TokenBroadcastMetadata

Public API should be documented per guidelines (purpose, field semantics, security notes about broadcasting raw JWT within same‑origin tabs).

As per coding guidelines.

-export interface TokenBroadcastMetadata {
+/**
+ * Metadata required to broadcast a newly fetched session token to sibling tabs on the same origin.
+ * Note: tokenRaw is the raw JWT and will be posted over a same‑origin BroadcastChannel.
+ */
+export interface TokenBroadcastMetadata {
   organizationId?: string | null;
   sessionId: string;
   template?: string;
   tokenRaw: string;
 }

72-75: Add a unit test asserting computeTokenId(sessionId, template, organizationId) matches Session#getCacheId(template, organizationId)
No existing tests cover this parity—adding one will prevent future drift.

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🧬 Code graph analysis (4)
packages/clerk-js/src/core/resources/Session.ts (4)
packages/clerk-js/src/utils/debug.ts (1)
  • debugLogger (150-179)
packages/clerk-js/src/core/tokenCache.ts (1)
  • SessionTokenCache (322-322)
packages/clerk-js/src/core/events.ts (2)
  • eventBus (31-31)
  • events (6-14)
packages/clerk-js/src/core/resources/Token.ts (1)
  • Token (6-53)
packages/clerk-js/src/core/clerk.ts (4)
packages/shared/src/ClerkBroadcastChannel.ts (1)
  • ClerkBroadcastChannel (23-81)
packages/types/src/clerk.ts (1)
  • ClerkBroadcastChannel (78-82)
packages/clerk-js/src/core/tokenCache.ts (1)
  • SessionTokenCache (322-322)
packages/clerk-js/src/utils/debug.ts (1)
  • debugLogger (150-179)
packages/clerk-js/src/core/__tests__/tokenCache.test.ts (3)
packages/types/src/clerk.ts (1)
  • ClerkCoreBroadcastChannelEvent (65-76)
packages/clerk-js/src/core/tokenCache.ts (1)
  • SessionTokenCache (322-322)
packages/clerk-js/src/test/core-fixtures.ts (1)
  • mockJwt (18-19)
packages/clerk-js/src/core/tokenCache.ts (4)
packages/types/src/clerk.ts (1)
  • ClerkCoreBroadcastChannelEvent (65-76)
packages/types/src/token.ts (1)
  • TokenResource (5-9)
packages/clerk-js/src/core/resources/Session.ts (1)
  • template (144-148)
packages/clerk-js/src/utils/debug.ts (1)
  • debugLogger (150-179)
🪛 Gitleaks (8.28.0)
packages/clerk-js/src/core/__tests__/tokenCache.test.ts

[high] 117-117: Uncovered a JSON Web Token, which may lead to unauthorized access to web applications and sensitive user data.

(jwt)


[high] 157-157: Uncovered a JSON Web Token, which may lead to unauthorized access to web applications and sensitive user data.

(jwt)

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🔇 Additional comments (7)
packages/clerk-js/src/core/__tests__/tokenCache.test.ts (1)

232-241: Broadcast behavior looks correct

  • Broadcasts exactly once when metadata is provided.
  • Skips when metadata is absent.
  • Validates tokenId before broadcasting.

Also applies to: 255-256, 277-278

packages/clerk-js/src/core/resources/Session.ts (3)

144-148: Cache key change is sensible and unambiguous

Using [sessionId, template, organizationId].filter(Boolean).join('-') is stable and avoids collisions so long as consumers don’t parse it. If any downstream parses tokenId, consider a tuple object instead of a delimited string.

Run a quick grep to ensure no code parses tokenId by splitting on -.


357-374: Non‑DOM guard for isActiveTab is correct

The typeof document/hasFocus/visibilityState checks prevent SSR/React Native crashes and centralize the flag for consistent logging.


419-429: Secure broadcast integration looks good

Passing metadata (including tokenRaw) into SessionTokenCache.set is fine given ClerkBroadcastChannel routes session_token events only over native BroadcastChannel (no localStorage persistence). Good separation of concerns.

Also applies to: 431-443

packages/clerk-js/src/core/clerk.ts (2)

2758-2766: Background-tab handling is scoped appropriately

Listener handles only signout and defers token sync to SessionTokenCache, reducing Clerk’s surface area here. Good separation.


2769-2773: Emit signout on all tabs — good routing

Posting { type: 'signout' } via ClerkBroadcastChannel fans out via localStorage fallback, ensuring wide coverage without leaking tokens.

packages/clerk-js/src/core/tokenCache.ts (1)

315-317: size() is fine

API returns the number of cached entries. No issues.

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Actionable comments posted: 1

🧹 Nitpick comments (3)
packages/types/src/clerk.ts (3)

65-82: Document new public types and consider exporting event-name constants.

These are public surface areas; add concise JSDoc and (optional) runtime constants to prevent string‑literal drift across packages.

-export type ClerkCoreBroadcastChannelEvent =
+/** Cross-tab events used by Clerk internals for session coordination. */
+export type ClerkCoreBroadcastChannelEvent =
   | { type: 'signout' }
   | {
       type: 'session_token';
       payload: {
         organizationId?: string | null;
         sessionId: string;
         template?: string;
         tokenId: string;
         tokenRaw: string;
       };
     };
 
-export interface ClerkBroadcastChannel {
+/** Minimal BroadcastChannel-like interface used by Clerk for cross-tab messaging. */
+export interface ClerkBroadcastChannel {
   addEventListener(eventName: 'message', listener: (e: MessageEvent<ClerkCoreBroadcastChannelEvent>) => void): void;
   close(): void;
   postMessage(data: ClerkCoreBroadcastChannelEvent): void;
 }

Optional constants (new code block):

export const ClerkCoreBroadcastEvent = {
  Signout: 'signout',
  SessionToken: 'session_token',
} as const;

68-76: Optional: include issuedAt in session_token payload to optimize dedupe logic

Current cache dedupe compares iat by decoding tokenRaw (e.g. in clerk-js/src/core/tokenCache.ts); adding an optional issuedAt?: number to the payload lets you do monotonicity checks directly without repeated JWT parsing.

       payload: {
         organizationId?: string | null;
         sessionId: string;
         template?: string;
         tokenId: string;
         tokenRaw: string;
+        /** Unix seconds since epoch when the token was issued. */
+        issuedAt?: number;
       };

65-77: Approve typed broadcast event union

  • Consistent use of 'signout' and 'session_token' across producers and consumers confirmed.
  • Consider adding removeEventListener/onmessage to the ClerkBroadcastChannel interface for symmetry with addEventListener.
  • Add JSDoc to ClerkCoreBroadcastChannelEvent and ClerkBroadcastChannel, and optionally export event-name constants for reuse.
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Actionable comments posted: 1

♻️ Duplicate comments (3)
packages/clerk-js/src/core/tokenCache.ts (3)

81-86: Close previous broadcast channel on re-attach to avoid listener leaks.

Re-attaching without removing the old listener or closing the previous channel leaks handlers and can duplicate message processing.

Apply this diff to properly clean up the old channel:

   const attachBroadcastChannel = (channel: ClerkBroadcastChannel | null) => {
+    if (broadcastChannel && broadcastChannel !== channel) {
+      try {
+        broadcastChannel.close();
+      } catch {
+        // noop
+      }
+    }
     broadcastChannel = channel;
     if (channel) {
       channel.addEventListener('message', handleBroadcastMessage);
     }
   };

194-202: Monotonicity check compares against entry.createdAt instead of cached token's iat.

The check compares existingEntry.createdAt (which may be the current time if the token was locally fetched) against the incoming token.jwt.claims.iat. This can incorrectly reject newer broadcasts from other tabs.

Apply this diff to compare against the cached token's actual issued-at:

-    const existingEntry = get({ tokenId: payload.tokenId });
-    if (existingEntry?.createdAt && existingEntry.createdAt >= token.jwt.claims.iat) {
+    const existing = cache.get(new TokenCacheKey(prefix, { tokenId: payload.tokenId }).toKey());
+    if (existing?.createdAt && existing.createdAt >= token.jwt.claims.iat) {
       debugLogger.debug(
         'Ignoring older token broadcast (monotonicity check)',
-        { existingCreatedAt: existingEntry.createdAt, incomingIat: token.jwt.claims.iat, tokenId: payload.tokenId },
+        { existingCreatedAt: existing.createdAt, incomingIat: token.jwt.claims.iat, tokenId: payload.tokenId },
         'tokenCache',
       );
       return;
     }

Additionally, in setInternal (line 271), align createdAt to the token's iat when the token resolves:

     entry.tokenResolver
       .then(newToken => {
         if (!newToken.jwt) {
           return deleteKey();
         }

         const expiresAt = newToken.jwt.claims.exp;
         const issuedAt = newToken.jwt.claims.iat;
         const expiresIn: Seconds = expiresAt - issuedAt;

+        // Align createdAt to the token's actual issued-at for monotonicity checks
+        value.createdAt = issuedAt;
         // Mutate cached value and set expirations
         value.expiresIn = expiresIn;

222-260: Validate tokenRaw presence before broadcasting.

The broadcast logic doesn't check if broadcast.tokenRaw is present. Broadcasting an empty or falsy token string could cause issues in receiving tabs.

Apply this diff to add validation:

     if (broadcast && broadcastChannel) {
       const expectedTokenId = computeTokenId(broadcast.sessionId, broadcast.template, broadcast.organizationId);
       if (entry.tokenId !== expectedTokenId) {
         debugLogger.warn(
           'Skipping broadcast - tokenId mismatch',
           { expectedTokenId, providedTokenId: entry.tokenId },
           'tokenCache',
         );
         return;
       }

+      if (!broadcast.tokenRaw) {
+        debugLogger.warn('Skipping broadcast - empty tokenRaw', { tokenId: entry.tokenId }, 'tokenCache');
+        return;
+      }

       debugLogger.info(
         'Broadcasting token update to other tabs',
🧹 Nitpick comments (1)
packages/clerk-js/src/core/tokenCache.ts (1)

7-11: Refactor: import ClerkBroadcastChannel from @clerk/types instead of redefining.

The ClerkBroadcastChannel type is already defined in packages/types/src/clerk.ts (lines 77-81). Redefining it here creates duplication and potential drift.

Apply this diff to use the existing type:

-import type { ClerkCoreBroadcastChannelEvent, TokenResource } from '@clerk/types';
+import type { ClerkBroadcastChannel, ClerkCoreBroadcastChannelEvent, TokenResource } from '@clerk/types';

 import { debugLogger } from '@/utils/debug';

 import { Token } from './resources/internal';

-type ClerkBroadcastChannel = {
-  addEventListener(eventName: 'message', listener: (e: MessageEvent<ClerkCoreBroadcastChannelEvent>) => void): void;
-  close(): void;
-  postMessage(data: ClerkCoreBroadcastChannelEvent): void;
-};
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  • packages/clerk-js/src/core/tokenCache.ts
packages/**/*.{ts,tsx}

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**/*.{ts,tsx}

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Use proper TypeScript error types

**/*.{ts,tsx}: Always define explicit return types for functions, especially public APIs
Use proper type annotations for variables and parameters where inference isn't clear
Avoid any type - prefer unknown when type is uncertain, then narrow with type guards
Use interface for object shapes that might be extended
Use type for unions, primitives, and computed types
Prefer readonly properties for immutable data structures
Use private for internal implementation details
Use protected for inheritance hierarchies
Use public explicitly for clarity in public APIs
Prefer readonly for properties that shouldn't change after construction
Prefer composition and interfaces over deep inheritance chains
Use mixins for shared behavior across unrelated classes
Implement dependency injection for loose coupling
Let TypeScript infer when types are obvious
Use const assertions for literal types: as const
Use satisfies operator for type checking without widening
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Use conditional types for type-level logic
Leverage template literal types for string manipulation
Use ES6 imports/exports consistently
Use default exports sparingly, prefer named exports
Use type-only imports: import type { ... } from ...
No any types without justification
Proper error handling with typed errors
Consistent use of readonly for immutable data
Proper generic constraints
No unused type parameters
Proper use of utility types instead of manual type construction
Type-only imports where possible
Proper tree-shaking friendly exports
No circular dependencies
Efficient type computations (avoid deep recursion)

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  • packages/clerk-js/src/core/tokenCache.ts
**/*.{js,ts,tsx,jsx}

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Support multiple Clerk environment variables (CLERK_, NEXT_PUBLIC_CLERK_, etc.) for configuration.

Files:

  • packages/clerk-js/src/core/clerk.ts
  • packages/clerk-js/src/core/tokenCache.ts
🧬 Code graph analysis (2)
packages/clerk-js/src/core/clerk.ts (3)
packages/shared/src/ClerkBroadcastChannel.ts (1)
  • ClerkBroadcastChannel (23-81)
packages/types/src/clerk.ts (1)
  • ClerkBroadcastChannel (78-82)
packages/clerk-js/src/core/tokenCache.ts (1)
  • SessionTokenCache (334-334)
packages/clerk-js/src/core/tokenCache.ts (4)
packages/types/src/clerk.ts (1)
  • ClerkCoreBroadcastChannelEvent (65-76)
packages/types/src/token.ts (1)
  • TokenResource (5-9)
packages/clerk-js/src/core/resources/Session.ts (1)
  • template (144-148)
packages/clerk-js/src/utils/debug.ts (1)
  • debugLogger (150-179)
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🔇 Additional comments (10)
packages/clerk-js/src/core/clerk.ts (4)

2-2: LGTM! Imports are correct.

The imports for ClerkBroadcastChannel and SessionTokenCache are properly structured and align with the cross-tab broadcasting architecture.

Also applies to: 163-163


229-229: LGTM! Field declaration updated correctly.

The broadcast channel field type has been properly updated to use the new ClerkBroadcastChannel interface.


2756-2763: LGTM! Broadcast listener correctly handles signout.

The listener properly delegates token synchronization to SessionTokenCache and handles signout events without causing broadcast loops.


2768-2770: LGTM! Signout broadcast emission is correct.

The event bus correctly broadcasts signout events to other tabs using the new ClerkBroadcastChannel.

packages/clerk-js/src/core/tokenCache.ts (6)

18-28: LGTM! Interface extensions support cross-tab broadcasting.

The additions to TokenCacheEntry, TokenBroadcastMetadata, TokenCacheValue, and TokenCache properly support the cross-tab token synchronization feature.

Also applies to: 32-37, 39-45


73-75: LGTM! Token ID computation matches Session resource pattern.

The computeTokenId helper correctly mirrors the cache ID generation in Session.ts (line 143-147).


88-95: LGTM! Per-entry timer cleanup is now correct.

The clear() method now properly iterates over all cached values and clears their individual timeout handles before clearing the cache.


97-142: LGTM! Enhanced get() correctly handles expiration and leeway.

The token retrieval logic properly validates expiration with configurable leeway, includes the sync poller interval, and provides helpful debug logging.


262-325: LGTM! Internal set logic correctly tracks timers and handles broadcasts.

The setInternal method properly manages per-entry timeouts, respects explicit createdAt from broadcasts, and includes the unref() call for Node compatibility.


327-334: LGTM! Export and size method are correct.

The size() method and SessionTokenCache singleton export are properly implemented.

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Actionable comments posted: 1

🧹 Nitpick comments (2)
packages/clerk-js/src/utils/tokenId.ts (2)

23-25: Validate that sessionId is non-empty.

The filter(Boolean) will remove an empty string sessionId, producing an incorrect token identifier. While upstream callers likely never pass empty strings, adding a runtime check improves robustness.

Apply this diff to add validation:

 build: (sessionId: string, template?: string, organizationId?: string | null): string => {
+  if (!sessionId) {
+    throw new Error('sessionId cannot be empty');
+  }
   return [sessionId, template, organizationId].filter(Boolean).join('-');
 },

42-49: Consider validating that tokenId starts with sessionId.

The method assumes tokenId is well-formed and starts with sessionId, but doesn't validate this. If a caller passes mismatched parameters, extractTemplate will produce incorrect results without any indication of the error.

Apply this diff to add validation:

 parse: (tokenId: string, sessionId: string, organizationId?: string | null): ParsedTokenId => {
+  if (!tokenId.startsWith(sessionId)) {
+    throw new Error(`tokenId "${tokenId}" does not start with sessionId "${sessionId}"`);
+  }
   const template = TokenId.extractTemplate(tokenId, sessionId, organizationId);
   return {
     organizationId,
     sessionId,
     template,
   };
 },
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📒 Files selected for processing (14)
  • .changeset/every-dryers-refuse.md (1 hunks)
  • .changeset/slick-ducks-bet.md (1 hunks)
  • integration/tests/session-token-cache/multi-session.test.ts (1 hunks)
  • integration/tests/session-token-cache/single-session.test.ts (1 hunks)
  • packages/clerk-js/src/core/__tests__/tokenCache.test.ts (1 hunks)
  • packages/clerk-js/src/core/clerk.ts (3 hunks)
  • packages/clerk-js/src/core/resources/Session.ts (4 hunks)
  • packages/clerk-js/src/core/resources/__tests__/Session.test.ts (2 hunks)
  • packages/clerk-js/src/core/tokenCache.ts (4 hunks)
  • packages/clerk-js/src/ui/elements/PhoneInput/__tests__/useFormattedPhoneNumber.test.ts (1 hunks)
  • packages/clerk-js/src/utils/__tests__/tokenId.test.ts (1 hunks)
  • packages/clerk-js/src/utils/index.ts (1 hunks)
  • packages/clerk-js/src/utils/tokenId.ts (1 hunks)
  • packages/shared/src/localStorageBroadcastChannel.ts (1 hunks)
🚧 Files skipped from review as they are similar to previous changes (7)
  • packages/clerk-js/src/core/resources/tests/Session.test.ts
  • integration/tests/session-token-cache/multi-session.test.ts
  • .changeset/slick-ducks-bet.md
  • packages/clerk-js/src/ui/elements/PhoneInput/tests/useFormattedPhoneNumber.test.ts
  • packages/shared/src/localStorageBroadcastChannel.ts
  • .changeset/every-dryers-refuse.md
  • packages/clerk-js/src/utils/index.ts
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**/*.{js,jsx,ts,tsx}

📄 CodeRabbit inference engine (.cursor/rules/development.mdc)

**/*.{js,jsx,ts,tsx}: All code must pass ESLint checks with the project's configuration
Follow established naming conventions (PascalCase for components, camelCase for variables)
Maintain comprehensive JSDoc comments for public APIs
Use dynamic imports for optional features
All public APIs must be documented with JSDoc
Provide meaningful error messages to developers
Include error recovery suggestions where applicable
Log errors appropriately for debugging
Lazy load components and features when possible
Implement proper caching strategies
Use efficient data structures and algorithms
Profile and optimize critical paths
Validate all inputs and sanitize outputs
Implement proper logging with different levels

Files:

  • packages/clerk-js/src/core/clerk.ts
  • packages/clerk-js/src/utils/tokenId.ts
  • packages/clerk-js/src/core/tokenCache.ts
  • packages/clerk-js/src/core/resources/Session.ts
  • packages/clerk-js/src/utils/__tests__/tokenId.test.ts
  • packages/clerk-js/src/core/__tests__/tokenCache.test.ts
  • integration/tests/session-token-cache/single-session.test.ts
**/*.{js,jsx,ts,tsx,json,css,scss,md,yaml,yml}

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Use Prettier for consistent code formatting

Files:

  • packages/clerk-js/src/core/clerk.ts
  • packages/clerk-js/src/utils/tokenId.ts
  • packages/clerk-js/src/core/tokenCache.ts
  • packages/clerk-js/src/core/resources/Session.ts
  • packages/clerk-js/src/utils/__tests__/tokenId.test.ts
  • packages/clerk-js/src/core/__tests__/tokenCache.test.ts
  • integration/tests/session-token-cache/single-session.test.ts
packages/**/*.{ts,tsx}

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TypeScript is required for all packages

Files:

  • packages/clerk-js/src/core/clerk.ts
  • packages/clerk-js/src/utils/tokenId.ts
  • packages/clerk-js/src/core/tokenCache.ts
  • packages/clerk-js/src/core/resources/Session.ts
  • packages/clerk-js/src/utils/__tests__/tokenId.test.ts
  • packages/clerk-js/src/core/__tests__/tokenCache.test.ts
packages/**/*.{ts,tsx,d.ts}

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Packages should export TypeScript types alongside runtime code

Files:

  • packages/clerk-js/src/core/clerk.ts
  • packages/clerk-js/src/utils/tokenId.ts
  • packages/clerk-js/src/core/tokenCache.ts
  • packages/clerk-js/src/core/resources/Session.ts
  • packages/clerk-js/src/utils/__tests__/tokenId.test.ts
  • packages/clerk-js/src/core/__tests__/tokenCache.test.ts
**/*.{ts,tsx}

📄 CodeRabbit inference engine (.cursor/rules/development.mdc)

Use proper TypeScript error types

**/*.{ts,tsx}: Always define explicit return types for functions, especially public APIs
Use proper type annotations for variables and parameters where inference isn't clear
Avoid any type - prefer unknown when type is uncertain, then narrow with type guards
Use interface for object shapes that might be extended
Use type for unions, primitives, and computed types
Prefer readonly properties for immutable data structures
Use private for internal implementation details
Use protected for inheritance hierarchies
Use public explicitly for clarity in public APIs
Prefer readonly for properties that shouldn't change after construction
Prefer composition and interfaces over deep inheritance chains
Use mixins for shared behavior across unrelated classes
Implement dependency injection for loose coupling
Let TypeScript infer when types are obvious
Use const assertions for literal types: as const
Use satisfies operator for type checking without widening
Use mapped types for transforming object types
Use conditional types for type-level logic
Leverage template literal types for string manipulation
Use ES6 imports/exports consistently
Use default exports sparingly, prefer named exports
Use type-only imports: import type { ... } from ...
No any types without justification
Proper error handling with typed errors
Consistent use of readonly for immutable data
Proper generic constraints
No unused type parameters
Proper use of utility types instead of manual type construction
Type-only imports where possible
Proper tree-shaking friendly exports
No circular dependencies
Efficient type computations (avoid deep recursion)

Files:

  • packages/clerk-js/src/core/clerk.ts
  • packages/clerk-js/src/utils/tokenId.ts
  • packages/clerk-js/src/core/tokenCache.ts
  • packages/clerk-js/src/core/resources/Session.ts
  • packages/clerk-js/src/utils/__tests__/tokenId.test.ts
  • packages/clerk-js/src/core/__tests__/tokenCache.test.ts
  • integration/tests/session-token-cache/single-session.test.ts
**/*.{js,ts,tsx,jsx}

📄 CodeRabbit inference engine (.cursor/rules/monorepo.mdc)

Support multiple Clerk environment variables (CLERK_, NEXT_PUBLIC_CLERK_, etc.) for configuration.

Files:

  • packages/clerk-js/src/core/clerk.ts
  • packages/clerk-js/src/utils/tokenId.ts
  • packages/clerk-js/src/core/tokenCache.ts
  • packages/clerk-js/src/core/resources/Session.ts
  • packages/clerk-js/src/utils/__tests__/tokenId.test.ts
  • packages/clerk-js/src/core/__tests__/tokenCache.test.ts
  • integration/tests/session-token-cache/single-session.test.ts
packages/**/*.{test,spec}.{js,jsx,ts,tsx}

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Unit tests should use Jest or Vitest as the test runner.

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  • packages/clerk-js/src/core/__tests__/tokenCache.test.ts
integration/**

📄 CodeRabbit inference engine (.cursor/rules/global.mdc)

Framework integration templates and E2E tests should be placed under the integration/ directory

Files:

  • integration/tests/session-token-cache/single-session.test.ts
integration/**/*

📄 CodeRabbit inference engine (.cursor/rules/monorepo.mdc)

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Files:

  • integration/tests/session-token-cache/single-session.test.ts
integration/**/*.{test,spec}.{js,ts}

📄 CodeRabbit inference engine (.cursor/rules/monorepo.mdc)

Integration tests should use Playwright.

Files:

  • integration/tests/session-token-cache/single-session.test.ts
🧬 Code graph analysis (6)
packages/clerk-js/src/utils/tokenId.ts (1)
packages/clerk-js/src/core/resources/Session.ts (1)
  • template (145-149)
packages/clerk-js/src/core/tokenCache.ts (4)
packages/types/src/token.ts (1)
  • TokenResource (5-9)
packages/clerk-js/src/utils/debug.ts (1)
  • debugLogger (150-179)
packages/clerk-js/src/utils/tokenId.ts (1)
  • TokenId (11-79)
packages/clerk-js/src/core/resources/Session.ts (1)
  • template (145-149)
packages/clerk-js/src/core/resources/Session.ts (6)
packages/clerk-js/src/utils/tokenId.ts (1)
  • TokenId (11-79)
packages/clerk-js/src/core/tokenCache.ts (1)
  • SessionTokenCache (400-400)
packages/clerk-js/src/utils/debug.ts (1)
  • debugLogger (150-179)
packages/clerk-js/src/core/events.ts (2)
  • eventBus (31-31)
  • events (6-14)
packages/clerk-js/src/core/resources/Base.ts (1)
  • path (164-177)
packages/clerk-js/src/core/resources/Token.ts (1)
  • Token (6-53)
packages/clerk-js/src/utils/__tests__/tokenId.test.ts (2)
packages/clerk-js/src/utils/tokenId.ts (1)
  • TokenId (11-79)
packages/clerk-js/src/core/resources/Session.ts (1)
  • template (145-149)
packages/clerk-js/src/core/__tests__/tokenCache.test.ts (3)
packages/clerk-js/src/core/tokenCache.ts (1)
  • SessionTokenCache (400-400)
packages/clerk-js/src/test/core-fixtures.ts (1)
  • mockJwt (18-19)
packages/types/src/token.ts (1)
  • TokenResource (5-9)
integration/tests/session-token-cache/single-session.test.ts (2)
integration/testUtils/index.ts (1)
  • createTestUtils (24-86)
integration/presets/index.ts (1)
  • appConfigs (15-32)
🪛 Gitleaks (8.28.0)
packages/clerk-js/src/core/__tests__/tokenCache.test.ts

[high] 159-159: Uncovered a JSON Web Token, which may lead to unauthorized access to web applications and sensitive user data.

(jwt)


[high] 179-179: Uncovered a JSON Web Token, which may lead to unauthorized access to web applications and sensitive user data.

(jwt)


[high] 215-215: Uncovered a JSON Web Token, which may lead to unauthorized access to web applications and sensitive user data.

(jwt)

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🔇 Additional comments (6)
packages/clerk-js/src/utils/tokenId.ts (2)

1-5: LGTM!

The interface definition is clean and properly typed, with appropriate use of optional and nullable types.


62-78: Logic correctly handles the documented token format.

The extraction logic properly handles the sessionId[-template][-organizationId] format with appropriate early returns and string manipulation. The implementation correctly strips the trailing organizationId when present.

Note: If a template name itself contains the organizationId as a substring (e.g., template "org_456-feature" with organizationId "org_456"), the trailing strip at Line 73-75 could produce unexpected results. However, this is consistent with the documented format where organizationId appears only at the end, and templates containing organizationId substrings would be considered invalid usage.

packages/clerk-js/src/core/clerk.ts (4)

227-227: LGTM! Native BroadcastChannel is the right choice.

The switch from the custom LocalStorageBroadcastChannel to the native BroadcastChannel API is appropriate and simplifies the implementation while maintaining cross-tab communication.


2553-2555: LGTM! Proper feature detection and initialization.

The feature detection correctly checks for BroadcastChannel availability before instantiation, which gracefully handles environments where the API is not supported (e.g., older browsers, some SSR contexts).


2767-2771: LGTM! Proper message validation in place.

The listener correctly validates the message type before acting, preventing unintended signouts from other message types. The use of optional chaining safely handles edge cases where data might be undefined.


2776-2778: LGTM! Consistent message structure.

The structured message format { type: 'signout' } is consistent with the listener validation and allows for future extension with additional message types if needed.

@jacekradko
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!snapshot

@clerk-cookie
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Hey @jacekradko - the snapshot version command generated the following package versions:

Package Version
@clerk/agent-toolkit 0.1.37-snapshot.v20251002194847
@clerk/astro 2.13.5-snapshot.v20251002194847
@clerk/backend 2.17.1-snapshot.v20251002194847
@clerk/chrome-extension 2.7.2-snapshot.v20251002194847
@clerk/clerk-js 5.98.0-snapshot.v20251002194847
@clerk/elements 0.23.68-snapshot.v20251002194847
@clerk/clerk-expo 2.15.5-snapshot.v20251002194847
@clerk/expo-passkeys 0.4.5-snapshot.v20251002194847
@clerk/express 1.7.36-snapshot.v20251002194847
@clerk/fastify 2.4.36-snapshot.v20251002194847
@clerk/localizations 3.25.6-snapshot.v20251002194847
@clerk/nextjs 6.33.2-snapshot.v20251002194847
@clerk/nuxt 1.9.3-snapshot.v20251002194847
@clerk/clerk-react 5.50.0-snapshot.v20251002194847
@clerk/react-router 2.0.2-snapshot.v20251002194847
@clerk/remix 4.13.2-snapshot.v20251002194847
@clerk/shared 3.27.2-snapshot.v20251002194847
@clerk/tanstack-react-start 0.25.2-snapshot.v20251002194847
@clerk/testing 1.13.2-snapshot.v20251002194847
@clerk/themes 2.4.24-snapshot.v20251002194847
@clerk/types 4.91.0-snapshot.v20251002194847
@clerk/vue 1.14.2-snapshot.v20251002194847

Tip: Use the snippet copy button below to quickly install the required packages.
@clerk/agent-toolkit

npm i @clerk/[email protected] --save-exact

@clerk/astro

npm i @clerk/[email protected] --save-exact

@clerk/backend

npm i @clerk/[email protected] --save-exact

@clerk/chrome-extension

npm i @clerk/[email protected] --save-exact

@clerk/clerk-js

npm i @clerk/[email protected] --save-exact

@clerk/elements

npm i @clerk/[email protected] --save-exact

@clerk/clerk-expo

npm i @clerk/[email protected] --save-exact

@clerk/expo-passkeys

npm i @clerk/[email protected] --save-exact

@clerk/express

npm i @clerk/[email protected] --save-exact

@clerk/fastify

npm i @clerk/[email protected] --save-exact

@clerk/localizations

npm i @clerk/[email protected] --save-exact

@clerk/nextjs

npm i @clerk/[email protected] --save-exact

@clerk/nuxt

npm i @clerk/[email protected] --save-exact

@clerk/clerk-react

npm i @clerk/[email protected] --save-exact

@clerk/react-router

npm i @clerk/[email protected] --save-exact

@clerk/remix

npm i @clerk/[email protected] --save-exact

@clerk/shared

npm i @clerk/[email protected] --save-exact

@clerk/tanstack-react-start

npm i @clerk/[email protected] --save-exact

@clerk/testing

npm i @clerk/[email protected] --save-exact

@clerk/themes

npm i @clerk/[email protected] --save-exact

@clerk/types

npm i @clerk/[email protected] --save-exact

@clerk/vue

npm i @clerk/[email protected] --save-exact

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Actionable comments posted: 1

♻️ Duplicate comments (1)
packages/clerk-js/src/core/__tests__/tokenCache.test.ts (1)

157-276: Generate offending JWTs at runtime to avoid gitleaks hits

Hardcoded JWT-shaped literals (invalidJwtWithoutIat, invalidJwtWithoutExp, olderJwt, plus the inline futureJwt/pastJwt/soonJwt strings) were previously flagged and will still trip secret scanning. Please build these tokens with the existing helper (or a new generic helper) instead of embedding the base64 strings.

+function createJwt(claims: Record<string, unknown>): string {
+  const payloadB64 = btoa(JSON.stringify(claims)).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
+  const headerB64 = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9';
+  return `${headerB64}.${payloadB64}.test-signature`;
+}
+
 function createJwtWithTtl(iatSeconds: number, ttlSeconds: number): string {
-  const payload = {
-    data: 'test-data',
-    exp: iatSeconds + ttlSeconds,
-    iat: iatSeconds,
-  };
-  const payloadString = JSON.stringify(payload);
-  const payloadB64 = btoa(payloadString).replace(/\+/g, '-').replace(/\//g, '_').replace(/=/g, '');
-  const headerB64 = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9';
-  const signature = 'test-signature';
-  return `${headerB64}.${payloadB64}.${signature}`;
+  return createJwt({
+    data: 'test-data',
+    exp: iatSeconds + ttlSeconds,
+    iat: iatSeconds,
+  });
 }
@@
-      const invalidJwtWithoutIat =
-        'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIn0.dozjgNryP4J3jVmNHl0w5N_XgL0n3I9PlFUP0THsR8U';
+      const invalidJwtWithoutIat = createJwt({ exp: 1666648850 });
@@
-      const invalidJwtWithoutExp =
-        'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpYXQiOjE2NjY2NDgyNTB9.NjdkMzg4YzYwZTQxZWQ2MTJkNmQ1ZDQ5YzY4ZTQxNjI';
+      const invalidJwtWithoutExp = createJwt({ iat: 1666648250 });
@@
-      const olderJwt =
-        'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE2NjY2NDg4NTAsImlhdCI6MTY2NjY0ODE5MH0.Z1BC47lImYvaAtluJlY-kBo0qOoAk42Xb-gNrB2SxJg';
+      const olderJwt = createJwt({ exp: 1666648850, iat: 1666648190 });
@@
-      const futureJwt = `eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.${btoa(
-        JSON.stringify({ iat: Math.floor(Date.now() / 1000), exp: futureExp }),
-      )}.signature`;
+      const futureJwt = createJwt({ iat: Math.floor(Date.now() / 1000), exp: futureExp });
@@
-      const pastJwt = `eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.${btoa(JSON.stringify({ iat, exp }))}.signature`;
+      const pastJwt = createJwt({ iat, exp });

Apply the same helper for soonJwt and similar fixtures in this file.
This eliminates the literals and keeps CI green.

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packages/types/src/token.ts (1)
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packages/clerk-js/src/utils/debug.ts (1)
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packages/clerk-js/src/utils/tokenId.ts (1)
  • TokenId (11-79)
packages/clerk-js/src/core/resources/Session.ts (1)
  • template (145-149)
packages/clerk-js/src/core/__tests__/tokenCache.test.ts (3)
packages/clerk-js/src/core/tokenCache.ts (1)
  • SessionTokenCache (395-395)
packages/clerk-js/src/test/core-fixtures.ts (1)
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Actionable comments posted: 1

🧹 Nitpick comments (1)
packages/clerk-js/src/core/__tests__/tokenCache.test.ts (1)

284-287: Use createJwtWithTtl helper for consistency.

For maintainability and consistency with the rest of the test suite, replace the inline JWT construction with the existing createJwtWithTtl helper.

Apply this diff:

-      const futureExp = Math.floor(Date.now() / 1000) + 3600; // 1 hour from now
-      const futureJwt = `eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.${btoa(
-        JSON.stringify({ iat: Math.floor(Date.now() / 1000), exp: futureExp }),
-      )}.signature`;
+      const nowSeconds = Math.floor(Date.now() / 1000);
+      const futureJwt = createJwtWithTtl(nowSeconds, 3600);
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Include error recovery suggestions where applicable
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Use proper type annotations for variables and parameters where inference isn't clear
Avoid any type - prefer unknown when type is uncertain, then narrow with type guards
Use interface for object shapes that might be extended
Use type for unions, primitives, and computed types
Prefer readonly properties for immutable data structures
Use private for internal implementation details
Use protected for inheritance hierarchies
Use public explicitly for clarity in public APIs
Prefer readonly for properties that shouldn't change after construction
Prefer composition and interfaces over deep inheritance chains
Use mixins for shared behavior across unrelated classes
Implement dependency injection for loose coupling
Let TypeScript infer when types are obvious
Use const assertions for literal types: as const
Use satisfies operator for type checking without widening
Use mapped types for transforming object types
Use conditional types for type-level logic
Leverage template literal types for string manipulation
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No any types without justification
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Proper tree-shaking friendly exports
No circular dependencies
Efficient type computations (avoid deep recursion)

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packages/types/src/token.ts (1)
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packages/clerk-js/src/utils/debug.ts (1)
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packages/clerk-js/src/utils/tokenId.ts (1)
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packages/clerk-js/src/core/resources/Session.ts (1)
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packages/clerk-js/src/core/__tests__/tokenCache.test.ts (3)
packages/clerk-js/src/core/tokenCache.ts (1)
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packages/clerk-js/src/test/core-fixtures.ts (1)
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packages/types/src/token.ts (1)
  • TokenResource (5-9)
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packages/clerk-js/src/core/__tests__/tokenCache.test.ts

[high] 159-159: Uncovered a JSON Web Token, which may lead to unauthorized access to web applications and sensitive user data.

(jwt)


[high] 179-179: Uncovered a JSON Web Token, which may lead to unauthorized access to web applications and sensitive user data.

(jwt)


[high] 215-215: Uncovered a JSON Web Token, which may lead to unauthorized access to web applications and sensitive user data.

(jwt)

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🔇 Additional comments (1)
packages/clerk-js/src/core/tokenCache.ts (1)

329-342: Verify timeout scheduling accounts for token age.

The timeout is scheduled for expiresIn * 1000 milliseconds from now (line 335), where expiresIn = exp - iat. If the token was issued earlier (common for broadcast messages), the cache will keep the entry past its actual expiration time. While get() correctly rejects expired tokens via leeway checks, the cleanup timer fires late, causing entries to linger in memory.

Example: Token issued at T=0 with 60s lifetime, received at T=30. Timeout scheduled for T=90 (30s after actual expiry at T=60).

The past review thread discussed this concern. The current approach may be intentional to avoid clock skew issues (using server-issued iat/exp timestamps rather than client wall-clock). However, this trades off timely memory cleanup for clock-skew resilience. Consider if this is the desired trade-off, or if a hybrid approach is needed:

// Option 1: Schedule based on remaining wall-clock time (past suggestion)
const nowWallClock = Math.floor(Date.now() / 1000);
const remainingSeconds = Math.max(0, expiresAt - nowWallClock);
if (remainingSeconds === 0) {
  deleteKey();
  return;
}
const timeoutId = setTimeout(deleteKey, remainingSeconds * 1000);

// Option 2: Keep current approach but document the trade-off
// Current: Uses token lifetime (expiresIn) for cleanup scheduling
// Pro: Immune to client clock skew
// Con: Entries linger past expiry; get() leeway handles correctness

If the current approach is intentional, consider adding a comment explaining the clock-skew vs. memory-cleanup trade-off.

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Actionable comments posted: 2

♻️ Duplicate comments (1)
packages/clerk-js/src/core/tokenCache.ts (1)

174-202: Use nullish coalescing for leeway parameter.

Line 191 uses (leeway || 1) which treats an explicit 0 leeway as 1. Per a past review comment marked as addressed, this should use nullish coalescing:

-    const expiresSoon = value.expiresIn! - elapsed < (leeway || 1) + SYNC_LEEWAY;
+    const expiresSoon = value.expiresIn! - elapsed < (leeway ?? 1) + SYNC_LEEWAY;

This ensures that if a caller explicitly passes leeway = 0, it is respected rather than coerced to 1.

Based on past review comment claiming this was addressed in commits 2754a77 to 30af700, but the code still shows the old pattern.

🧹 Nitpick comments (2)
packages/clerk-js/src/core/tokenCache.ts (2)

144-161: Verify listener cleanup on re-initialization scenarios.

The ensureBroadcastChannel function returns early if broadcastChannel exists (line 149-151), which prevents duplicate listeners. However, if the channel is closed externally or becomes stale, re-initialization might occur without removing the old listener first.

While the current pattern (check existence, return early) prevents duplicates in normal flow, consider adding defensive cleanup if broadcastChannel is non-null but closed:

 const ensureBroadcastChannel = (): BroadcastChannel | null => {
   if (!__BUILD_VARIANT_CHANNEL__) {
     return null;
   }

   if (broadcastChannel) {
+    // Defensive: verify channel is still open
     return broadcastChannel;
   }

This is a low-probability edge case, but worth considering for robustness.


208-290: Add tokenRaw validation before parsing.

The function parses data.tokenRaw without first checking if it's non-empty (line 227). While the Token constructor may handle empty strings gracefully, explicit validation improves clarity and enables better error messages:

+  if (!data.tokenRaw) {
+    debugLogger.warn(
+      'Ignoring broadcast with empty tokenRaw',
+      { tokenId: data.tokenId, traceId: data.traceId },
+      'tokenCache',
+    );
+    return;
+  }
+
   let token: Token;
   try {

This makes the validation explicit and consistent with the pattern used in setInternal (lines 351-352).

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Include error recovery suggestions where applicable
Log errors appropriately for debugging
Lazy load components and features when possible
Implement proper caching strategies
Use efficient data structures and algorithms
Profile and optimize critical paths
Validate all inputs and sanitize outputs
Implement proper logging with different levels

Files:

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Use interface for object shapes that might be extended
Use type for unions, primitives, and computed types
Prefer readonly properties for immutable data structures
Use private for internal implementation details
Use protected for inheritance hierarchies
Use public explicitly for clarity in public APIs
Prefer readonly for properties that shouldn't change after construction
Prefer composition and interfaces over deep inheritance chains
Use mixins for shared behavior across unrelated classes
Implement dependency injection for loose coupling
Let TypeScript infer when types are obvious
Use const assertions for literal types: as const
Use satisfies operator for type checking without widening
Use mapped types for transforming object types
Use conditional types for type-level logic
Leverage template literal types for string manipulation
Use ES6 imports/exports consistently
Use default exports sparingly, prefer named exports
Use type-only imports: import type { ... } from ...
No any types without justification
Proper error handling with typed errors
Consistent use of readonly for immutable data
Proper generic constraints
No unused type parameters
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Type-only imports where possible
Proper tree-shaking friendly exports
No circular dependencies
Efficient type computations (avoid deep recursion)

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packages/clerk-js/src/index.channel.browser.ts (1)
packages/clerk-js/src/ui/Components.tsx (1)
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packages/clerk-js/src/core/tokenCache.ts (4)
packages/types/src/token.ts (1)
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packages/clerk-js/src/utils/debug.ts (1)
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packages/clerk-js/src/utils/tokenId.ts (1)
  • TokenId (11-79)
packages/clerk-js/src/core/resources/Session.ts (1)
  • template (145-149)
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🔇 Additional comments (21)
packages/clerk-js/bundlewatch.config.json (1)

5-5: LGTM!

The new bundlewatch entry for the channel variant follows the established pattern and uses an appropriate size limit consistent with the standard browser variant.

packages/clerk-js/src/global.d.ts (1)

14-14: LGTM!

The build-time feature flag declaration follows the established naming convention and is properly typed as a boolean, consistent with other variant flags.

packages/clerk-js/package.json (2)

29-29: LGTM!

Adding "channel" to the files array ensures the channel build artifacts are included in the published package, consistent with other variants.


46-46: LGTM!

The dev:channel script correctly references the clerk.channel.browser variant and follows the established pattern used by other variant dev scripts.

packages/clerk-js/src/index.channel.browser.ts (3)

1-10: LGTM!

The entry point structure correctly prioritizes webpack chunk loading setup and properly initializes the Clerk component renderer, following established patterns from other browser variants.


12-24: LGTM!

The configuration reading logic correctly falls back from script data attributes to window globals, consistent with other browser entry points.


34-36: LGTM!

Hot module replacement is appropriately configured for the development workflow.

packages/clerk-js/rspack.config.js (6)

20-20: LGTM!

The new channel variant constant follows the established naming convention and is properly positioned alongside other variants.


31-31: LGTM!

The source file mapping correctly points to the new channel browser entry point, maintaining consistency with the variant-to-source mapping pattern.


63-63: LGTM!

The build-time feature flag is properly defined and will be set to true only when building the channel variant, enabling conditional compilation of channel-specific code.


430-435: LGTM!

The production configuration for the channel browser variant correctly merges all necessary build configurations (entry, common settings, production optimizations, and chunking), following the established pattern used by other browser variants.


551-551: LGTM!

Including the channel browser variant in the production build exports ensures it will be built alongside other variants during production builds.


659-663: LGTM!

The development configuration for the channel browser variant correctly merges the necessary development settings, enabling proper dev server support with hot module replacement.

packages/clerk-js/src/core/tokenCache.ts (8)

1-14: LGTM! Imports and type definitions are correct.

The imports follow ES6 module conventions and the TokenCacheKeyJSON interface appropriately identifies cache entries by tokenId and optional audience.


16-43: LGTM! Interface definitions are well-documented.

The JSDoc comments for TokenCacheEntry and TokenCacheValue are comprehensive and follow coding guidelines. The addition of timeoutId field enables proper per-entry timer cleanup as requested in past reviews.


45-81: LGTM! Public API documentation is complete.

The TokenCache interface has comprehensive JSDoc covering all methods, parameters, return values, and side effects. This meets the coding guideline requirement for documenting all public APIs.


83-120: LGTM! TokenCacheKey implementation is well-structured.

The TokenCacheKey class provides clear conversion between object and string representations, with appropriate JSDoc documentation. The format prefix::tokenId::audience is explicit and the implementation handles optional audience correctly.


122-132: LGTM! SessionTokenEvent interface is well-defined.

The interface captures all necessary fields for cross-tab token synchronization, including a traceId for debugging. The JSDoc clearly describes its purpose.


165-172: LGTM! Timer cleanup is correctly implemented.

The clear() method iterates all cached values and cancels each entry's timeout before clearing the cache, preventing timer leaks as requested in past reviews.


292-296: LGTM! The set() method is clean.

The method correctly ensures the broadcast channel is initialized before delegating to setInternal with broadcasting enabled.


394-406: LGTM! Cleanup and utility methods are correct.

The close(), size(), and return statement correctly implement the public TokenCache interface. The close() method properly releases the broadcast channel and nullifies the reference.

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Actionable comments posted: 2

🧹 Nitpick comments (2)
packages/clerk-js/src/core/tokenCache.ts (2)

174-201: Use nullish coalescing for leeway parameter

Line 190 uses (leeway || 1) which treats an explicit 0 leeway as falsy and replaces it with 1. This prevents callers from intentionally setting leeway to 0.

Apply this diff:

-    const expiresSoon = value.expiresIn! - elapsed < (leeway || 1) + SYNC_LEEWAY;
+    const expiresSoon = value.expiresIn! - elapsed < (leeway ?? 1) + SYNC_LEEWAY;

Note: A previous review comment claimed this was addressed in commits 2754a77 to 30af700, but the change wasn't applied.


348-384: LGTM: Comprehensive broadcast logic with minor suggestion

The broadcast implementation is well-structured and includes:

  • Proper guards for channel existence and broadcast flag
  • Token extraction and validation
  • Template parsing using TokenId.extractTemplate
  • Token ID validation against expected format
  • Trace ID generation for debugging
  • Comprehensive logging

The implicit tokenRaw validation via tokenRaw && claims.sid (line 351) is functional but could be more explicit for clarity.

Consider making the tokenRaw validation more explicit:

         const channel = broadcastChannel;
         if (channel && options.broadcast) {
           const tokenRaw = newToken.getRawString();
-          if (tokenRaw && claims.sid) {
+          if (!tokenRaw) {
+            debugLogger.warn('Skipping broadcast - empty tokenRaw', { tokenId: entry.tokenId }, 'tokenCache');
+            return;
+          }
+          if (claims.sid) {
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📒 Files selected for processing (2)
  • packages/clerk-js/src/core/tokenCache.ts (4 hunks)
  • packages/clerk-js/vitest.config.mts (1 hunks)
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📓 Path-based instructions (6)
**/*.{js,jsx,ts,tsx}

📄 CodeRabbit inference engine (.cursor/rules/development.mdc)

**/*.{js,jsx,ts,tsx}: All code must pass ESLint checks with the project's configuration
Follow established naming conventions (PascalCase for components, camelCase for variables)
Maintain comprehensive JSDoc comments for public APIs
Use dynamic imports for optional features
All public APIs must be documented with JSDoc
Provide meaningful error messages to developers
Include error recovery suggestions where applicable
Log errors appropriately for debugging
Lazy load components and features when possible
Implement proper caching strategies
Use efficient data structures and algorithms
Profile and optimize critical paths
Validate all inputs and sanitize outputs
Implement proper logging with different levels

Files:

  • packages/clerk-js/src/core/tokenCache.ts
**/*.{js,jsx,ts,tsx,json,css,scss,md,yaml,yml}

📄 CodeRabbit inference engine (.cursor/rules/development.mdc)

Use Prettier for consistent code formatting

Files:

  • packages/clerk-js/src/core/tokenCache.ts
packages/**/*.{ts,tsx}

📄 CodeRabbit inference engine (.cursor/rules/development.mdc)

TypeScript is required for all packages

Files:

  • packages/clerk-js/src/core/tokenCache.ts
packages/**/*.{ts,tsx,d.ts}

📄 CodeRabbit inference engine (.cursor/rules/development.mdc)

Packages should export TypeScript types alongside runtime code

Files:

  • packages/clerk-js/src/core/tokenCache.ts
**/*.{ts,tsx}

📄 CodeRabbit inference engine (.cursor/rules/development.mdc)

Use proper TypeScript error types

**/*.{ts,tsx}: Always define explicit return types for functions, especially public APIs
Use proper type annotations for variables and parameters where inference isn't clear
Avoid any type - prefer unknown when type is uncertain, then narrow with type guards
Use interface for object shapes that might be extended
Use type for unions, primitives, and computed types
Prefer readonly properties for immutable data structures
Use private for internal implementation details
Use protected for inheritance hierarchies
Use public explicitly for clarity in public APIs
Prefer readonly for properties that shouldn't change after construction
Prefer composition and interfaces over deep inheritance chains
Use mixins for shared behavior across unrelated classes
Implement dependency injection for loose coupling
Let TypeScript infer when types are obvious
Use const assertions for literal types: as const
Use satisfies operator for type checking without widening
Use mapped types for transforming object types
Use conditional types for type-level logic
Leverage template literal types for string manipulation
Use ES6 imports/exports consistently
Use default exports sparingly, prefer named exports
Use type-only imports: import type { ... } from ...
No any types without justification
Proper error handling with typed errors
Consistent use of readonly for immutable data
Proper generic constraints
No unused type parameters
Proper use of utility types instead of manual type construction
Type-only imports where possible
Proper tree-shaking friendly exports
No circular dependencies
Efficient type computations (avoid deep recursion)

Files:

  • packages/clerk-js/src/core/tokenCache.ts
**/*.{js,ts,tsx,jsx}

📄 CodeRabbit inference engine (.cursor/rules/monorepo.mdc)

Support multiple Clerk environment variables (CLERK_, NEXT_PUBLIC_CLERK_, etc.) for configuration.

Files:

  • packages/clerk-js/src/core/tokenCache.ts
🧬 Code graph analysis (1)
packages/clerk-js/src/core/tokenCache.ts (4)
packages/types/src/token.ts (1)
  • TokenResource (5-9)
packages/clerk-js/src/utils/tokenId.ts (1)
  • TokenId (11-79)
packages/clerk-js/src/utils/debug.ts (1)
  • debugLogger (150-179)
packages/clerk-js/src/core/resources/Session.ts (1)
  • template (145-149)
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🔇 Additional comments (9)
packages/clerk-js/src/core/tokenCache.ts (9)

1-31: LGTM: Imports and interface documentation

The imports are properly structured, and the JSDoc documentation for TokenCacheKeyJSON and TokenCacheEntry is comprehensive and follows coding guidelines. The createdAt field addition is well-documented with clear semantics (seconds since UNIX epoch).


33-43: LGTM: Timer tracking properly implemented

The addition of timeoutId to TokenCacheValue properly addresses the timer leak issue flagged in previous reviews. The JSDoc clearly documents the purpose of this internal type.


45-81: LGTM: Comprehensive interface documentation

The TokenCache interface now has excellent JSDoc documentation for all methods, including parameter descriptions, return types, and side effects. This meets the coding guideline requirements for public API documentation.


83-120: LGTM: Clean key abstraction

The TokenCacheKey class provides a clean abstraction for converting between object and string representations. The addition of BROADCAST and NO_BROADCAST constants improves code clarity. Documentation is comprehensive.


122-163: LGTM: BroadcastChannel initialization

The SessionTokenEvent interface is well-documented, and the ensureBroadcastChannel function correctly:

  • Guards initialization with the build variant flag
  • Uses native BroadcastChannel (not a custom wrapper)
  • Initializes only once (cached in broadcastChannel)
  • Properly attaches the message listener

Note: Previous review comments about implementing removeEventListener on a custom ClerkBroadcastChannel type don't apply here since this implementation uses the native BroadcastChannel API directly.


165-172: LGTM: Proper cleanup implementation

The clear() function correctly iterates through all cache entries and clears their individual timeouts before clearing the cache. This properly addresses the past review concern about only clearing a single timer.


207-289: LGTM: Robust broadcast message handling

The handleBroadcastMessage function includes comprehensive validation:

  • Token ID format validation against expected components
  • JWT parsing with error handling
  • Presence of required iat/exp claims
  • Monotonicity check by comparing the incoming iat against the existing token's iat
  • Proper logging at each decision point

The monotonicity check correctly compares the resolved token's iat (not createdAt), which properly addresses previous review concerns.


291-295: LGTM: Clean public set interface

The set() method correctly ensures the broadcast channel is initialized and delegates to the internal implementation with broadcast enabled.


393-407: LGTM: Clean resource management and export

The close() and size() methods are straightforward and correct. The export of SessionTokenCache as a singleton instance is appropriate for this use case.

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