Contact emails wanming....@intel.com<mailto:wanming....@intel.com>
Explainer None Specification https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#timers Summary Calls to setTimeout(..., 0) were previously clamped to a 1 ms timeout, instead of resulting in a callback as soon as possible. This clamping is being removed. To get the old behavior, use setTimeout(..., 1) instead. Blink component Blink>Scheduling<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EScheduling> TAG review TAG review status Not applicable Risks This is a web standards compliant feature, but it may change task ordering on a web page, leading to unexpected behavior on sites that are dependent on a certain ordering in some way. It also may affect sites with a lot of setTimeout() with a timeout of 0ms usage, e.g. increasing CPU load. Interoperability and Compatibility Gecko: Shipped/Shipping WebKit: Shipped/Shipping (https://bugs.webkit.org/show_bug.cgi?id=221124) 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? Yes, same as "Risks" section. Goals for experimentation Our goals are to determine the extent of breakage caused by this feature to determine if it is safe to ship and to ensure we performance metrics don't regress, e.g. core web vitals. We've previously experimented at 75% on Canary/Dev/Beta without capturing any issues, and we would like to experiment on Stable to analyze the impact on the broader population. Reason this experiment is being extended Ongoing technical constraints Debuggability 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/+/master/docs/testing/web_platform_tests.md>? No Flag name SetTimeoutWithoutClamp Requires code in //chrome? False Tracking bug https://bugs.chromium.org/p/chromium/issues/detail?id=402694 Estimated milestones OriginTrial desktop last 102 OriginTrial desktop first 101 DevTrial on desktop 97 OriginTrial android last 102 OriginTrial android first 101 DevTrial on android 97 DevTrial on iOS 97 We plan to do a 1% Stable experiment for M101 and M102 stable. Link to Intent to Ship https://groups.google.com/a/chromium.org/g/blink-dev/c/HKPTp7C1LwY Link to entry on the Chrome Platform Status https://chromestatus.com/feature/4889002157015040 This intent message was generated by Chrome Platform Status<https://chromestatus.com/>. -- 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/SJ0PR11MB4894ACD972A47366896D1C7EFFE09%40SJ0PR11MB4894.namprd11.prod.outlook.com.
