chore: Scaffold combined browser package.

Author: kinyoklion

.github/ISSUE_TEMPLATE/package-sdk-combined-browser--bug_report.md

@@ -0,0 +1,36 @@
+---
+name: '@launchdarkly/browser Bug Report'
+about: Create a report to help us improve
+title: ''
+labels: 'package: sdk/combined-browser, bug'
+assignees: ''
+---
+
+**Is this a support request?**
+This issue tracker is maintained by LaunchDarkly SDK developers and is intended for feedback on the code in this library. If you're not sure whether the problem you are having is specifically related to this library, or to the LaunchDarkly service overall, it may be more appropriate to contact the LaunchDarkly support team; they can help to investigate the problem and will consult the SDK team if necessary. You can submit a support request by going [here](https://support.launchdarkly.com/) and clicking "submit a request", or by emailing [email protected].
+
+Note that issues filed on this issue tracker are publicly accessible. Do not provide any private account information on your issues. If your problem is specific to your account, you should submit a support request as described above.
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To reproduce**
+Steps to reproduce the behavior.
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Logs**
+If applicable, add any log output related to your problem.
+
+**SDK version**
+The version of this SDK that you are using.
+
+**Language version, developer tools**
+For instance, Go 1.11 or Ruby 2.5.3. If you are using a language that requires a separate compiler, such as C, please include the name and version of the compiler too.
+
+**OS/platform**
+For instance, Ubuntu 16.04, Windows 10, or Android 4.0.3. If your code is running in a browser, please also include the browser type and version.
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/package-sdk-combined-browser--feature_request.md

@@ -0,0 +1,19 @@
+---
+name: '@launchdarkly/browser Feature Request'
+about: Create a report to help us improve
+title: ''
+labels: 'package: sdk/combined-browser, feature'
+assignees: ''
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I would love to see the SDK [...does something new...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context about the feature request here.

.github/workflows/combined-browser.yml

@@ -0,0 +1,44 @@
+name: sdk/combined-browser
+
+on:
+  push:
+    branches: [main, 'feat/**']
+    paths-ignore:
+      - '**.md' #Do not need to run CI for markdown changes.
+  pull_request:
+    branches: [main, 'feat/**']
+    paths-ignore:
+      - '**.md'
+
+jobs:
+  build-test-browser:
+    permissions:
+      pull-requests: write
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        # Node versions to run on.
+        version: [18, 21]
+
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.version }}
+          registry-url: 'https://registry.npmjs.org'
+      - id: shared
+        name: Shared CI Steps
+        uses: ./actions/ci
+        with:
+          workspace_name: '@launchdarkly/browser'
+          workspace_path: packages/sdk/combined-browser
+      - name: Check package size
+        if: github.event_name == 'pull_request' && matrix.version == '21'
+        uses: ./actions/package-size
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          target_file: 'packages/sdk/combined-browser/dist/index.js'
+          package_name: '@launchdarkly/browser'
+          pr_number: ${{ github.event.number }}
+          size_limit: 25000

.github/workflows/manual-publish-docs.yml

@@ -23,6 +23,7 @@ on:
           - packages/sdk/browser
           - packages/sdk/server-ai
           - packages/telemetry/browser-telemetry
+          - packages/sdk/combined-browser
 name: Publish Documentation
 jobs:
   build-publish:

.github/workflows/manual-publish.yml

@@ -36,6 +36,7 @@ on:
           - packages/sdk/browser
           - packages/sdk/server-ai
           - packages/telemetry/browser-telemetry
+          - packages/sdk/combined-browser
       prerelease:
         description: 'Is this a prerelease. If so, then the latest tag will not be updated in npm.'
         type: boolean

.github/workflows/release-please.yml

@@ -28,6 +28,7 @@ jobs:
       package-browser-released: ${{ steps.release.outputs['packages/sdk/browser--release_created'] }}
       package-server-ai-released: ${{ steps.release.outputs['packages/sdk/server-ai--release_created'] }}
       package-browser-telemetry-released: ${{ steps.release.outputs['packages/telemetry/browser-telemetry--release_created'] }}
+      package-combined-browser-released: ${{ steps.release.outputs['packages/sdk/combined-browser--release_created'] }}
     steps:
       - uses: googleapis/release-please-action@v4
         id: release
@@ -207,7 +208,7 @@ jobs:
         with:
           node-version: 22.x
           registry-url: 'https://registry.npmjs.org'
-      - id: release-react-native
+      - id: release-browser
         name: Full release of packages/sdk/browser
         uses: ./actions/full-release
         with:
@@ -439,3 +440,24 @@ jobs:
         with:
           workspace_path: packages/telemetry/browser-telemetry
           aws_assume_role: ${{ vars.AWS_ROLE_ARN }}
+
+  release-combined-browser:
+    runs-on: ubuntu-latest
+    needs: ['release-please', 'release-browser']
+    permissions:
+      id-token: write
+      contents: write
+    if: ${{ always() && !failure() && !cancelled() && needs.release-please.outputs.package-combined-browser-released == 'true'}}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22.x
+          registry-url: 'https://registry.npmjs.org'
+      - id: release-combined-browser
+        name: Full release of packages/sdk/combined-browser
+        uses: ./actions/full-release
+        with:
+          workspace_path: packages/sdk/combined-browser
+          aws_assume_role: ${{ vars.AWS_ROLE_ARN }}
+        

package.json

@@ -34,7 +34,8 @@
     "packages/sdk/server-ai/examples/bedrock",
     "packages/sdk/server-ai/examples/openai",
     "packages/telemetry/browser-telemetry",
-    "contract-tests"
+    "contract-tests",
+    "packages/sdk/combined-browser"
   ],
   "private": true,
   "scripts": {

packages/sdk/combined-browser/CHANGELOG.md

@@ -0,0 +1,13 @@
+Copyright 2025 Catamorphic, Co.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

packages/sdk/combined-browser/LICENSE

@@ -0,0 +1,61 @@
+# LaunchDarkly JavaScript SDK for Browsers
+
+[![NPM][browser-sdk-npm-badge]][browser-sdk-npm-link]
+[![Actions Status][browser-sdk-ci-badge]][browser-sdk-ci]
+[![Documentation][browser-sdk-ghp-badge]][browser-sdk-ghp-link]
+[![NPM][browser-sdk-dm-badge]][browser-sdk-npm-link]
+[![NPM][browser-sdk-dt-badge]][browser-sdk-npm-link]
+
+# ⛔️⛔️⛔️⛔️
+
+> [!CAUTION]
+> This library is a alpha version and should not be considered ready for production use while this message is visible.
+
+# ☝️☝️☝️☝️☝️☝️
+
+<!--
+## Install
+
+```shell
+# npm
+npm i @launchdarkly/js-client-sdk
+
+# yarn
+yarn add -D @launchdarkly/js-client-sdk
+```
+-->
+
+## Getting started
+
+Refer to the [SDK documentation](https://docs.launchdarkly.com/sdk/client-side/javascript#getting-started) for instructions on getting started with using the SDK.
+
+Note: _If you are using JavaScript in a non-browser environment, please check our other SDK packages in [js-core](https://github.com/launchdarkly/js-core)_
+Please note that the JavaScript SDK has two special requirements in terms of your LaunchDarkly environment. First, in terms of the credentials for your environment that appear on your [Account Settings](https://app.launchdarkly.com/settings/projects) dashboard, the JavaScript SDK uses the "Client-side ID"-- not the "SDK key" or the "Mobile key". Second, for any feature flag that you will be using in JavaScript code, you must check the "Make this flag available to client-side SDKs" box on that flag's Settings page.
+
+## Verifying SDK build provenance with the SLSA framework
+
+LaunchDarkly uses the [SLSA framework](https://slsa.dev/spec/v1.0/about) (Supply-chain Levels for Software Artifacts) to help developers make their supply chain more secure by ensuring the authenticity and build integrity of our published SDK packages. To learn more, see the [provenance guide](PROVENANCE.md).
+
+## About LaunchDarkly
+
+- LaunchDarkly is a continuous delivery platform that provides feature flags as a service and allows developers to iterate quickly and safely. We allow you to easily flag your features and manage them from the LaunchDarkly dashboard. With LaunchDarkly, you can:
+  - Roll out a new feature to a subset of your users (like a group of users who opt-in to a beta tester group), gathering feedback and bug reports from real-world use cases.
+  - Gradually roll out a feature to an increasing percentage of users, and track the effect that the feature has on key metrics (for instance, how likely is a user to complete a purchase if they have feature A versus feature B?).
+  - Turn off a feature that you realize is causing performance problems in production, without needing to re-deploy, or even restart the application with a changed configuration file.
+  - Grant access to certain features based on user attributes, like payment plan (eg: users on the ‘gold’ plan get access to more features than users in the ‘silver’ plan).
+  - Disable parts of your application to facilitate maintenance, without taking everything offline.
+- LaunchDarkly provides feature flag SDKs for a wide variety of languages and technologies. Read [our documentation](https://docs.launchdarkly.com/sdk) for a complete list.
+- Explore LaunchDarkly
+  - [launchdarkly.com](https://www.launchdarkly.com/ 'LaunchDarkly Main Website') for more information
+  - [docs.launchdarkly.com](https://docs.launchdarkly.com/ 'LaunchDarkly Documentation') for our documentation and SDK reference guides
+  - [apidocs.launchdarkly.com](https://apidocs.launchdarkly.com/ 'LaunchDarkly API Documentation') for our API documentation
+  - [blog.launchdarkly.com](https://blog.launchdarkly.com/ 'LaunchDarkly Blog Documentation') for the latest product updates
+
+[browser-sdk-ci-badge]: https://github.com/launchdarkly/js-core/actions/workflows/browser.yml/badge.svg
+[browser-sdk-ci]: https://github.com/launchdarkly/js-core/actions/workflows/browser.yml
+[browser-sdk-npm-badge]: https://img.shields.io/npm/v/@launchdarkly/js-client-sdk.svg?style=flat-square
+[browser-sdk-npm-link]: https://www.npmjs.com/package/@launchdarkly/js-client-sdk
+[browser-sdk-ghp-badge]: https://img.shields.io/static/v1?label=GitHub+Pages&message=API+reference&color=00add8
+[browser-sdk-ghp-link]: https://launchdarkly.github.io/js-core/packages/sdk/browser/docs/
+[browser-sdk-dm-badge]: https://img.shields.io/npm/dm/@launchdarkly/js-client-sdk.svg?style=flat-square
+[browser-sdk-dt-badge]: https://img.shields.io/npm/dt/@launchdarkly/js-client-sdk.svg?style=flat-square