We would like to extend the origin trial for 3 additional milestones, with the extension starting in 112 continuing through 114. The initial experiment was approved for the OT running from 109 through 111.
Contact emails yu...@google.com, yu...@chromium.org, fer...@chromium.org Explainer https://github.com/rubberyuzu/bfcache-not-retored-reason/blob/main/NotRestoredReason.md Design docs https://github.com/rubberyuzu/bfcache-not-retored-reason/blob/main/NotRestoredReason.md Summary NotRestoredReason API reports the reasons why a page is not served from BFCache after a history navigation. The report is accessible via the PerformanceNavigationTiming API. The report attributes reasons to specific frames as much as possible, while respecting cross-origin security concerns. Blink component UI>Browser>Navigation>BFCache <https://bugs.chromium.org/p/chromium/issues/list?q=component:UI%3EBrowser%3ENavigation%3EBFCache> TAG review https://github.com/w3ctag/design-reviews/issues/739 TAG review status Issues addressed Risks Interoperability and Compatibility Gecko: No signal: WebKit: No signal: Web developers: Positive ( https://github.com/w3c/navigation-timing/issues/171#issuecomment-1062672989) Security We do not report detailed information about cross-origin iframes. For cross-origin iframes, we only report if they blocked bfcache or not, and we do not report the reasons why. Goals for experimentation We would like developers to use the new field notRestoredReasons in performance navigation entry, e.g. performance.getEntriesByType('navigation')[0].notRestoredReasons; The goal of the experiment is to gather feedback from developers about the API shape. Reason this experiment is being extended We had requested this Origin Trial to be run for 3 milestones, specifically from 109 to 111 without realizing the Origin Trial guideline <https://www.chromium.org/blink/launching-features/#step-5-optional-origin-trial> suggesting 6 milestones. We would like to extend this OT for another 3 milestones or to 114 inclusive by applying the 6 milestone guidelines we originally missed, to give sufficient time for partners to give us feedback. Debuggability In DevTools console, try: performance.getEntriesByType('navigation')[0].notRestoredReasons; Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, Chrome OS, Android, and Android WebView)? No Is this feature fully tested by web-platform-tests <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md> ? No DevTrial instructions https://chromium.googlesource.com/chromium/src/+/main/docs/experiments/not-restored-reasons.md https://github.com/rubberyuzu/bfcache-not-retored-reason/blob/main/HowToTest.md Flag name --enable-experimental-web-platform-features Tracking bug https://bugs.chromium.org/p/chromium/issues/detail?id=1326344 Launch bug https://launch.corp.google.com/launch/4200848 Estimated milestones OriginTrial desktop last (new request) 114 OriginTrial desktop last 111 OriginTrial desktop first 109 OriginTrial desktop last (new request) 114 OriginTrial Android last 111 OriginTrial Android first 109 OriginTrial webView last (new request) 114 OriginTrial webView last 111 OriginTrial webView first 109 Link to entry on the Chrome Platform Status https://chromestatus.com/feature/5684908759449600 Links to previous Intent discussions Intent to prototype: https://groups.google.com/a/chromium.org/g/blink-dev/c/os3qUVtqyWo/m/4cs6GCN5BAAJ Intent to Experiment: https://groups.google.com/a/chromium.org/g/blink-dev/c/ce4hr99dUDc/m/C4wYpnKiAwAJ Read for Trial: https://groups.google.com/a/chromium.org/g/blink-dev/c/7jBZLdt7EsY/m/KiTrSzbSBgAJ -- 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+unsubscr...@chromium.org. To view this discussion on the web visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAA5e698QcKZSthm%3Dz_4pi8cOzi4kfbx-AXveC%2BAKimUh-tMycA%40mail.gmail.com.
