feat: enhance Web Vitals telemetry with semantic attributes #316
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ccschmitz-launchdarkly
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O11Y-791-add-pathname-on-web-vitals-metrics
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Vadman97
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Dec 12, 2025
🤖 I have created a release *beep* *boop* --- <details><summary>observability: 0.4.10</summary> ## [0.4.10](observability-0.4.9...observability-0.4.10) (2025-12-12) ### Dependencies * The following workspace dependencies were updated * dependencies * highlight.run bumped to 9.24.0 </details> <details><summary>session-replay: 0.4.10</summary> ## [0.4.10](session-replay-0.4.9...session-replay-0.4.10) (2025-12-12) ### Dependencies * The following workspace dependencies were updated * dependencies * highlight.run bumped to 9.24.0 </details> <details><summary>highlight.run: 9.24.0</summary> ## [9.24.0](highlight.run-9.23.0...highlight.run-9.24.0) (2025-12-12) ### Features * enhance Web Vitals telemetry with semantic attributes ([#316](#316)) ([2f47edf](2f47edf)) </details> --- This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please). <!-- CURSOR_SUMMARY --> --- > [!NOTE] > Release @launchdarkly/observability and @launchdarkly/session-replay 0.4.10 with dependency bump to highlight.run 9.24.0, which adds enhanced Web Vitals telemetry. > > - **Releases**: > - `sdk/@launchdarkly/observability` → `0.4.10` > - `sdk/@launchdarkly/session-replay` → `0.4.10` > - `sdk/highlight-run` → `9.24.0` > - **Features (highlight.run 9.24.0)**: > - Enhance Web Vitals telemetry with semantic attributes. > - **Dependency updates**: > - `@launchdarkly/observability` and `@launchdarkly/session-replay` now depend on `[email protected]`. > - **Release metadata**: > - Update `.release-please-manifest.json` to reflect new versions. > > <sup>Written by [Cursor Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit 1563f9b. This will update automatically on new commits. Configure [here](https://cursor.com/dashboard?tab=bugbot).</sup> <!-- /CURSOR_SUMMARY -->
abelonogov-ld
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Dec 16, 2025
* main: feat: Limit accumulating canvas buffer (#322) chore: Fix existing RRwebGraphQLReplayLogExporterTest tests (#321) feat: sanitize URLs + semantic conventions for header attributes (#317) refactor: introduce granular ObservabilityOptions (#323) refactor: OY11-846 - Add Session Replay plugin (#313) chore: upgrade react-server-dom-webpack to 19.0.3 (#320) chore: release main (#319) feat: enhance Web Vitals telemetry with semantic attributes (#316) chore: release main (#318) fix: Android - Remove Disk Buffering (#315) chore: readme update with real examples (#314)
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Summary
Adds some SemConv attributes for different parts o the URL. This will be used to build UI for breaking down web vitals performance across different pages in an app. Also migrates the
groupattribute to pathname rather than the full href, lowering its cardinality.How did you test this change?
Click tested the E2E react router example and checked things were landing in Clickhouse correctly.
Are there any deployment considerations?
N/A
Note
Adds OTel semantic URL attributes to Web Vitals gauges and groups them by pathname instead of full URL.
sdk/highlight-run/src/sdk/observe.ts):ATTR_URL_FULL,ATTR_URL_PATH,ATTR_SERVER_ADDRESS.window.location.hreftowindow.location.pathnamefor Web Vitals metrics.Written by Cursor Bugbot for commit a6ff35a. This will update automatically on new commits. Configure here.