LGTM1 On Thu, Oct 13, 2022 at 11:06 AM Xiaocheng Hu <xiaoche...@chromium.org> wrote:
> Hi all, > > Here's an update as now the trunk has reached M109, the target milestone > for the removal. > > Event.path has been fully disabled on Canary & Dev, 50% on Beta and 1% on > Stable. To help migration, an enterprise policy > <https://chromeenterprise.google/policies/#EventPathEnabled> is also > added to extend the availablility of Event.path until M115. > > Despite the usage number > <https://chromestatus.com/metrics/feature/timeline/popularity/345> still > being high, I think the actual compat risks of the removal is low because: > - The feature is never supported by WebKit or Gecko, yet there's no bug > reports for them > - Since the partial disabling, we have received only one complaint > <https://groups.google.com/a/chromium.org/g/chromium-dev/c/xt4XJYpoHXo/m/yBW13BXvAAAJ>, > which appears resolved by the enterprise policy > - HTTPArchive source analysis > <https://docs.google.com/document/d/1JUeNc-ZxxWTn2tz9M_DJ4cV-M8lBdp40xlnfQ2-Mhgg/edit> > (done in June) shows that very few (<0.1%) pages actually have a usage that > will fail after the removal; Many other pages are using the feature with > Event.composedPath() or some ad hoc code as a fallback, or are not real > usage (e.g., cloning every attribute of an Event object, hence triggering > the use counter without actually using it) > > > > On Tuesday, February 8, 2022 at 4:25:57 PM UTC-8 Xiaocheng Hu wrote: > >> Contact emailsxiaoche...@chromium.org >> >> ExplainerNone >> >> SpecificationNone. Not a standard feature. >> >> Summary >> >> Event.path is a non-standard API that returns the event's path, which is >> an array of the objects on which listeners will be invoked. It is supported >> by Blink only, causing web compatibility issues. Web developers should >> switch to the equivalent standard API Event.composedPath(), which returns >> the same result. >> >> >> Blink componentBlink>DOM >> <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EDOM> >> >> TAG review >> >> TAG review statusNot applicable >> >> Risks >> >> >> Interoperability and Compatibility >> >> The removal of this API should improve interoperability, as it's >> supported by Blink only. It still has 18% usage as of Feb 2022 ( >> https://chromestatus.com/metrics/feature/timeline/popularity/345), so we >> will only deprecate it for now, and will not remove it before the usage >> drops low enough. We expect low compatibility risks, since there is an >> equivalent standard API (Event.composedPath()) by all browsers, and the >> following polyfill should also keep existing sites functioning with minimum >> changes: if (!Event.prototype.path) { >> Object.defineProperty(Event.prototype, 'path', { get() { return >> this.composedPath(); } }); } >> >> >> Gecko: No signal Firefox does not support Event.path >> >> WebKit: No signal Safari does not support Event.path >> >> Web developers: Positive ( >> https://github.com/web-platform-tests/interop-2022/issues/26) >> >> Other signals: >> >> >> Debuggability >> >> Usage of this deprecated feature will be reported to the DevTools Issues >> Tab. >> >> >> 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 >> >> Requires code in //chrome?False >> >> Tracking bughttps://bugs.chromium.org/p/chromium/issues/detail?id=1277431 >> >> Estimated milestones >> >> No milestones specified >> >> >> Link to entry on the Chrome Platform Status >> https://chromestatus.com/feature/5726124632965120 >> >> 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/9547aff7-15ad-420e-8574-d5bfc06b67c3n%40chromium.org > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/9547aff7-15ad-420e-8574-d5bfc06b67c3n%40chromium.org?utm_medium=email&utm_source=footer> > . > -- 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/CAOMQ%2Bw-9CRZ5ZRC6BVUU0-jcEE0jOyvqdOuvmU_fAUZ%2BeEOhrQ%40mail.gmail.com.
