Prevent LCP being reported for hidden prerendered page #326
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tunetheweb
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Oct 5, 2024
##### [`v4.2.3](https://github.com/GoogleChrome/web-vitals/blob/HEAD/CHANGELOG.md#v423-2024-08-06) - Fix missing LoAF entries in INP attribution ([#512](GoogleChrome/web-vitals#512)) ##### [`v4.2.2](https://github.com/GoogleChrome/web-vitals/blob/HEAD/CHANGELOG.md#v422-2024-07-17) - Fix interaction count after bfcache restore ([#505](GoogleChrome/web-vitals#505)) ##### [`v4.2.1](https://github.com/GoogleChrome/web-vitals/blob/HEAD/CHANGELOG.md#v421-2024-06-30) - Fix compatibility issues with TypeScript v5.5 ([#497](GoogleChrome/web-vitals#497)) ##### [`v4.2.0](https://github.com/GoogleChrome/web-vitals/blob/HEAD/CHANGELOG.md#v420-2024-06-20) - Refactor INP attribution code to fix errors on Windows 10 ([#495](GoogleChrome/web-vitals#495)) ##### [`v4.1.1](https://github.com/GoogleChrome/web-vitals/blob/HEAD/CHANGELOG.md#v411-2024-06-10) - Fix pending LoAF cleanup logic ([#493](GoogleChrome/web-vitals#493)) ##### [`v4.1.0](https://github.com/GoogleChrome/web-vitals/blob/HEAD/CHANGELOG.md#v410-2024-06-06) - Move the support check to the top of the onINP() function ([#490](GoogleChrome/web-vitals#490)) - Fix missing LoAF attribution when entries are dispatched before event entries ([#487](GoogleChrome/web-vitals#487)) ##### [`v4.0.1](https://github.com/GoogleChrome/web-vitals/blob/HEAD/CHANGELOG.md#v401-2024-05-21) - Add the `ReportCallback` type back but deprecate it ([#483](GoogleChrome/web-vitals#483)) ##### [`v4.0.0](https://github.com/GoogleChrome/web-vitals/blob/HEAD/CHANGELOG.md#v400-2024-05-13) - **\[BREAKING]** Update types to support more generic usage ([#471](GoogleChrome/web-vitals#471)) - **\[BREAKING]** Split `waitingDuration` to make it easier to understand redirect delays ([#458](GoogleChrome/web-vitals#458)) - **\[BREAKING]** Rename `TTFBAttribution` fields from `*Time` to `*Duration` ([#453](GoogleChrome/web-vitals#453)) - **\[BREAKING]** Rename `resourceLoadTime` to `resourceLoadDuration` in LCP attribution ([#450](GoogleChrome/web-vitals#450)) - **\[BREAKING]** Add INP breakdown timings and LoAF attribution ([#442](GoogleChrome/web-vitals#442)) - **\[BREAKING]** Deprecate `onFID()` and remove previously deprecated APIs ([#435](GoogleChrome/web-vitals#435)) - Expose the target element in INP attribution ([#479](GoogleChrome/web-vitals#479)) - Save INP target after interactions to reduce null values when removed from the DOM ([#477](GoogleChrome/web-vitals#477)) - Cap TTFB in attribution ([#440](GoogleChrome/web-vitals#440)) - Fix `reportAllChanges` behavior for LCP when library is loaded late ([#468](GoogleChrome/web-vitals#468)) ##### [`v3.5.2](https://github.com/GoogleChrome/web-vitals/blob/HEAD/CHANGELOG.md#v352-2024-01-25) - Pick the first non-null `target` for INP attribution ([#421](GoogleChrome/web-vitals#421)) ##### [`v3.5.1](https://github.com/GoogleChrome/web-vitals/blob/HEAD/CHANGELOG.md#v351-2023-12-27) - Add extra guard for `PerformanceEventTiming` not existing ([#403](GoogleChrome/web-vitals#403)) ##### [`v3.5.0](https://github.com/GoogleChrome/web-vitals/blob/HEAD/CHANGELOG.md#v350-2023-09-28) - Run `onLCP` callback in separate task ([#386](GoogleChrome/web-vitals#386)) - Fix INP durationThreshold bug when set to 0 ([#372](GoogleChrome/web-vitals#372)) - Prevent FID entries being emitted as INP for non-supporting browsers ([#368](GoogleChrome/web-vitals#368)) ##### [`v3.4.0](https://github.com/GoogleChrome/web-vitals/blob/HEAD/CHANGELOG.md#v340-2023-07-11) - Make `bindReporter` generic over metric type ([#359](GoogleChrome/web-vitals#359)) - Update INP status in README ([#362](GoogleChrome/web-vitals#362)) - Fix Metric types for better TypeScript support ([#356](GoogleChrome/web-vitals#356)) - Fix selector for SVGs for attribution build ([#354](GoogleChrome/web-vitals#354)) ##### [`v3.3.2](https://github.com/GoogleChrome/web-vitals/blob/HEAD/CHANGELOG.md#v332-2023-05-29) - Fix attribution types ([#348](GoogleChrome/web-vitals#348)) - Safe access navigation entry type ([#290](GoogleChrome/web-vitals#290)) ##### [`v3.3.1](https://github.com/GoogleChrome/web-vitals/blob/HEAD/CHANGELOG.md#v331-2023-04-04) - Export metric rating thresholds in attribution build as well. ##### [`v3.3.0](https://github.com/GoogleChrome/web-vitals/blob/HEAD/CHANGELOG.md#v330-2023-03-09) - Export metric rating thresholds, add explicit `MetricRatingThresholds` type ([#323](GoogleChrome/web-vitals#323)) - Trim classname selector ([#328](GoogleChrome/web-vitals#328)) - Add link to CrUX versus RUM blog post ([#327](GoogleChrome/web-vitals#327)) - Prevent LCP being reported for hidden prerendered pages ([#326](GoogleChrome/web-vitals#326)) - Add Server Timing information to docs ([#324](GoogleChrome/web-vitals#324)) - Fix link in `onINP()` thresholds comment ([#318](GoogleChrome/web-vitals#318)) - Update web.dev link for `onINP()` ([#307](GoogleChrome/web-vitals#307)) - Add a note about when to load the library ([#305](GoogleChrome/web-vitals#305)) ##### [`v3.1.1](https://github.com/GoogleChrome/web-vitals/blob/HEAD/CHANGELOG.md#v311-2023-01-10) - Defer CLS logic until after `onFCP()` callback ([#297](GoogleChrome/web-vitals#297)) ##### [`v3.1.0](https://github.com/GoogleChrome/web-vitals/blob/HEAD/CHANGELOG.md#v310-2022-11-15) - Add support for `'restore'` as a `navigationType` ([#284](GoogleChrome/web-vitals#284)) - Report initial CLS value when `reportAllChanges` is true ([#283](GoogleChrome/web-vitals#283)) - Defer all observers until after activation ([#282](GoogleChrome/web-vitals#282)) - Ignore TTFB for loads where responseStart is zero ([#281](GoogleChrome/web-vitals#281)) - Defer execution of observer callbacks ([#278](GoogleChrome/web-vitals#278)) ##### [`v3.0.4](https://github.com/GoogleChrome/web-vitals/blob/HEAD/CHANGELOG.md#v304-2022-10-18) - Clamp LCP and FCP to 0 for prerendered pages ([#270](GoogleChrome/web-vitals#270)) ##### [`v3.0.3](https://github.com/GoogleChrome/web-vitals/blob/HEAD/CHANGELOG.md#v303-2022-10-04) - Ensure `attribution` object is always present in attribution build ([#265](GoogleChrome/web-vitals#265)) ##### [`v3.0.2](https://github.com/GoogleChrome/web-vitals/blob/HEAD/CHANGELOG.md#v302-2022-09-14) - Set an explicit unpkg dist file ([#261](GoogleChrome/web-vitals#261)) ##### [`v3.0.1](https://github.com/GoogleChrome/web-vitals/blob/HEAD/CHANGELOG.md#v301-2022-08-31) - Use the cjs extension for all UMD builds ([#257](GoogleChrome/web-vitals#257)) ##### [`v3.0.0](https://github.com/GoogleChrome/web-vitals/blob/HEAD/CHANGELOG.md#v300-2022-08-24) - **\[BREAKING]** Add a config object param to all metric functions ([#225](GoogleChrome/web-vitals#225)) - **\[BREAKING]** Report TTFB after a bfcache restore ([#220](GoogleChrome/web-vitals#220)) - **\[BREAKING]** Only include last LCP entry in metric entries ([#218](GoogleChrome/web-vitals#218)) - Update the metric ID prefix for v3 ([#251](GoogleChrome/web-vitals#251)) - Move the Navigation Timing API polyfill to the base+polyfill build ([#248](GoogleChrome/web-vitals#248)) - Add a metric rating property ([#246](GoogleChrome/web-vitals#246)) - Add deprecation notices for base+polyfill builds ([#242](GoogleChrome/web-vitals#242)) - Add a new attribution build for debugging issues in the field ([#237](GoogleChrome/web-vitals#237), [#244](GoogleChrome/web-vitals#244)) - Add support for prerendered pages ([#233](GoogleChrome/web-vitals#233)) - Rename the `ReportHandler` type to `ReportCallback`, with alias for back-compat ([#225](GoogleChrome/web-vitals#225), [#227](GoogleChrome/web-vitals#227)) - Add support for the new INP metric ([#221](GoogleChrome/web-vitals#221), [#232](GoogleChrome/web-vitals#232)) - Rename `getXXX()` functions to `onXXX()` ([#222](GoogleChrome/web-vitals#222)) - Add a `navigationType` property to the Metric object ([#219](GoogleChrome/web-vitals#219))
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Fixes #325
Note not adding a test case for this as a bit niche and racey and so would likely be flakey.