Done. Sorry I missed doing that before sending the I2E. On Monday, March 10, 2025 at 1:38:19 PM UTC-7 mike...@chromium.org wrote:
> Could you please request the privacy, security & debuggability bits in > your chromestatus entry? > On 3/10/25 11:39 AM, 'Mike Jackson' via blink-dev wrote: > > *Contact emails* > > mjac...@microsoft.com > > *Explainer* > > > https://github.com/MicrosoftEdge/MSEdgeExplainers/blob/main/PerformanceNavigationTiming%20for%20User%20Agent%20Launch/explainer.md > > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2FMicrosoftEdge%2FMSEdgeExplainers%2Fblob%2Fmain%2FPerformanceNavigationTiming%2520for%2520User%2520Agent%2520Launch%2Fexplainer.md&data=05%7C02%7Cmjackson%40microsoft.com%7Cdc397aa61b7843369f3908dd5dc08796%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C638769803697942336%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=l545yNmj1lynC9I%2BDSYM0WwxIf%2B7JPscZVRwqyO0CG0%3D&reserved=0> > > *Specification* > > > https://github.com/MicrosoftEdge/MSEdgeExplainers/blob/main/PerformanceNavigationTiming%20for%20User%20Agent%20Launch/explainer.md > > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2FMicrosoftEdge%2FMSEdgeExplainers%2Fblob%2Fmain%2FPerformanceNavigationTiming%2520for%2520User%2520Agent%2520Launch%2Fexplainer.md&data=05%7C02%7Cmjackson%40microsoft.com%7Cdc397aa61b7843369f3908dd5dc08796%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C638769803697949544%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=53CDOgKaQqUr7h0uuqV0XTreC9Xc4PjJCd4P8pfjcsg%3D&reserved=0> > > *Design docs* > > > > https://docs.google.com/document/d/1D6DqptsCEd3wPRsZ0q1iwVBAXXmhxZuLV-KKFI0ptCg/edit#heading=h.7nki9mck5t64 > > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdocs.google.com%2Fdocument%2Fd%2F1D6DqptsCEd3wPRsZ0q1iwVBAXXmhxZuLV-KKFI0ptCg%2Fedit%23heading%3Dh.7nki9mck5t64&data=05%7C02%7Cmjackson%40microsoft.com%7Cdc397aa61b7843369f3908dd5dc08796%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C638769803697955783%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=I62vI9C34jU3P5nXvbD60nsR%2BMdmqbWoci8YcLZUX%2Fc%3D&reserved=0> > > *Summary* > > Web applications may suffer from bimodal distribution in page load > performance, due to factors outside of the web application’s control. For > example: > > > * When a user agent first launches (a "cold start" scenario), it must > perform many expensive initialization tasks that compete for resources on > the system. > > * Browser extensions can affect the performance of a website. For > instance, some extensions run additional code on every page you visit, > which can increase CPU usage and result in slower response times. > > * When a machine is busy performing intensive tasks, it can lead to > slower loading of web pages. > > > In these scenarios, content the web app attempts to load will be in > competition with other work happening on the system. This makes it > difficult to detect if performance issues exist within web applications > themselves, or because of external factors. > > > Teams we have worked with have been surprised at the difference between > real-world dashboard metrics and what they observe in page profiling tools. > Without more information, it is challenging for developers to understand if > (and when) their applications may be misbehaving or are simply being loaded > in a contended period. > > > A new ‘confidence’ field on the PerformanceNavigationTiming object will > enable developers to discern if the navigation timings are representative > for their web application. > > > For this experiment, we are only supporting the "cold start" scenario > described above. > > > *Blink component* > > Blink>PerformanceAPIs>NavigationTiming > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fissues.chromium.org%2Fissues%3Fq%3Dcustomfield1222907%3A%2522Blink%253EPerformanceAPIs%253ENavigationTiming%2522&data=05%7C02%7Cmjackson%40microsoft.com%7Cdc397aa61b7843369f3908dd5dc08796%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C638769803697962141%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=WdtB1JHzsqw7nptXBxD8q1M49xTT3TPMS5cXNoB6CIE%3D&reserved=0> > > *TAG review* > > https://github.com/w3ctag/design-reviews/issues/878 > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fw3ctag%2Fdesign-reviews%2Fissues%2F878&data=05%7C02%7Cmjackson%40microsoft.com%7Cdc397aa61b7843369f3908dd5dc08796%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C638769803697968285%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=nM5HjM1NBtOLdJjcsSC8ztVxC2j7XQ2Q%2FRoQqUhbv2Y%3D&reserved=0> > > *TAG review status* > > Pending > > *Risks* > > > > *Interoperability and Compatibility* > > None. > > > > *Gecko*: No signal ( > https://github.com/mozilla/standards-positions/issues/1191 > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fmozilla%2Fstandards-positions%2Fissues%2F1191&data=05%7C02%7Cmjackson%40microsoft.com%7Cdc397aa61b7843369f3908dd5dc08796%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C638769803697974689%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=BjW9lcveF2md4KwSBMdMattz93S%2BiL6dCTOuqImJedA%3D&reserved=0> > ) > > *WebKit*: No signal ( > https://github.com/WebKit/standards-positions/issues/469 > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2FWebKit%2Fstandards-positions%2Fissues%2F469&data=05%7C02%7Cmjackson%40microsoft.com%7Cdc397aa61b7843369f3908dd5dc08796%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C638769803697981005%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=igAq%2B%2Fm4F9UA131uMaZJCquItGmJdDdFSZ6xasXf%2BVE%3D&reserved=0> > ) > > *Web developers*: No signals > > *Other signals*: > > *WebView application risks* > > *Does this intent deprecate or change behavior of existing APIs, such that > it has potentially high risk for Android WebView-based applications?* > > *None* > > > > *Goals for experimentation* > > The noise added means that the 'confidence' field isn’t immediately useful > to developers. Developers can collect this field in their Real User > Monitoring (RUM) data and with enough records, correct the data to > "eliminate the noise". One of the objectives of the experiment is to > confirm developers are successfully able to do that. We're also interested > in feedback about the API shape and ease of use. > > *Ongoing technical constraints* > > > > *Debuggability* > > > > *Will this feature be supported on all six Blink platforms (Windows, Mac, > Linux, ChromeOS, Android, and Android WebView)?* > > Yes > > *Is this feature fully tested by web-platform-tests > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fchromium.googlesource.com%2Fchromium%2Fsrc%2F%2B%2Fmain%2Fdocs%2Ftesting%2Fweb_platform_tests.md&data=05%7C02%7Cmjackson%40microsoft.com%7Cdc397aa61b7843369f3908dd5dc08796%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C638769803697987015%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=4tQ8p8wUbdNcbU1w9Q2ycphr9%2B26QTFSFi%2FkaFN976U%3D&reserved=0>?* > > Yes > > > third_party/blink/web_tests/http/tests/misc/performance-navigation-timing-entry-confidence.tentative.html > > > > *Flag name on about://flags* > > > > *Finch feature name* > > PerformanceNavigationTimingConfidence > > *Requires code in //chrome?* > > True > > *Tracking bug* > > https://bugs.chromium.org/p/chromium/issues/detail?id=1413848 > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbugs.chromium.org%2Fp%2Fchromium%2Fissues%2Fdetail%3Fid%3D1413848&data=05%7C02%7Cmjackson%40microsoft.com%7Cdc397aa61b7843369f3908dd5dc08796%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C638769803697993345%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=shu8uGiF7pcS6ba5a0wPZMQlhDqSP%2FFt1c%2Fkgo%2Fmr%2B8%3D&reserved=0> > > *Estimated milestones* > > Origin trial desktop first > > 136 > > Origin trial desktop last > > 139 > > DevTrial on desktop > > 135 > > Origin trial Android first > > 136 > > Origin trial Android last > > 139 > > DevTrial on Android > > 135 > > *Link to entry on the Chrome Platform Status* > > https://chromestatus.com/feature/5186950448283648?gate=5434970730921984 > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fchromestatus.com%2Ffeature%2F5186950448283648%3Fgate%3D5434970730921984&data=05%7C02%7Cmjackson%40microsoft.com%7Cdc397aa61b7843369f3908dd5dc08796%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C638769803697999701%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=FDqM0V2hX1IyOGPQqIywtNc1KKRudAbaF7N7%2F0h5DRw%3D&reserved=0> > > *Links to previous Intent discussions* > > Intent to Prototype: > https://groups.google.com/a/chromium.org/g/blink-dev/c/o0F7nBKsgg0/m/bJSp3ekfAAAJ > > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgroups.google.com%2Fa%2Fchromium.org%2Fd%2Fmsgid%2Fblink-dev%2FDM6PR00MB0751A324F65AAAAD9544C2028ED09%2540DM6PR00MB0751.namprd00.prod.outlook.com&data=05%7C02%7Cmjackson%40microsoft.com%7Cdc397aa61b7843369f3908dd5dc08796%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C638769803698006323%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=aGxLAd3gKXHZFerHWRwS741opPk5%2BhEk8H6AyBok%2BRs%3D&reserved=0> > > > > -- > You received this message because you are subscribed to the Google Groups > "blink-dev" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to blink-dev+...@chromium.org. > To view this discussion visit > https://groups.google.com/a/chromium.org/d/msgid/blink-dev/8357116e-470b-4a87-a816-bb24aa58f5cbn%40chromium.org > > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/8357116e-470b-4a87-a816-bb24aa58f5cbn%40chromium.org?utm_medium=email&utm_source=footer> > . > > -- You received this message because you are subscribed to the Google Groups "blink-dev" group. 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