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Cap TTFB in attribution #440

Merged
merged 4 commits into from
Mar 19, 2024
Merged

Cap TTFB in attribution #440

merged 4 commits into from
Mar 19, 2024

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tunetheweb
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Fixes #439

@tunetheweb tunetheweb requested a review from philipwalton March 5, 2024 17:11
@tunetheweb tunetheweb mentioned this pull request Mar 5, 2024
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philipwalton
philipwalton requested changes Mar 10, 2024
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I think it'd be better to extract the logic in the ofTTFB() into a helper in /src/lib/ and then all of these files could reuse the same logic (and also point to the bugs that explain why the logic is there).

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...thinking about this abit more (and having my memory jogged after looking at the bugs in the source code comments), I think it might be better to not report attribution data in cases where the TTFB value is not trustworthy (since an incorrect TTFB value would impact the accuracy of other sub-part timing values as well).

We don't report the TTFB metric in these cases, and I think it would make sense to do that here as well.

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OK re-did this to load from single lib function and also return without an attribution model when the TTFB is invalid.

@tunetheweb tunetheweb requested a review from philipwalton March 11, 2024 14:50
philipwalton
philipwalton requested changes Mar 19, 2024
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src/lib/invalidTiming.ts Outdated Show resolved Hide resolved
@tunetheweb tunetheweb requested a review from philipwalton March 19, 2024 12:27
@philipwalton philipwalton merged commit 398f331 into main Mar 19, 2024
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@philipwalton philipwalton deleted the cap-ttfb-in-attribution branch March 19, 2024 18:21
zemnmez-renovate-bot added a commit to zemn-me/monorepo that referenced this pull request Oct 5, 2024
@zemnmez-renovate-bot
fix(deps): update dependency web-vitals to v4
b07a342 
##### [`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))
github-merge-queue bot pushed a commit to zemn-me/monorepo that referenced this pull request Oct 5, 2024
@zemnmez-renovate-bot
fix(deps): update dependency web-vitals to v4
f7232d4 
##### [`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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