Do you have any predicted end milestone for the deprecation? What does current usage look like?
+Jason Robbins <jrobb...@google.com> - FYI, this didn't make it to the chromestatus tool. On Sat, Feb 11, 2023 at 2:04 AM Mason Freed <mas...@chromium.org> wrote: > Contact emailsmas...@chromium.org > > ExplainerNone > > Specificationhttps://github.com/whatwg/html/pull/5465 > > Summary > > The standards-track `shadowrootmode` attribute, which enables declarative > Shadow DOM, was shipped in Chrome 111 > <https://chromestatus.com/feature/5161240576393216>. The older, > non-standard `shadowroot` attribute is now deprecated. During the > deprecation period, both attributes are functional, however the > `shadowroot` attribute does not enable the new streaming behavior, whereas > `shadowrootmode` allows streaming of content. There is a straightforward > migration path: replace `shadowroot` with `shadowrootmode`. > > > Blink componentBlink>DOM>ShadowDOM > <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EDOM%3EShadowDOM> > > Search tagsdeclarative > <https://chromestatus.com/features#tags:declarative>, shadow > <https://chromestatus.com/features#tags:shadow>, dom > <https://chromestatus.com/features#tags:dom>, shadowroot > <https://chromestatus.com/features#tags:shadowroot> > > TAG review > > TAG review statusNot applicable > > Risks > > > Interoperability and Compatibility > > The current (2-10-23) usage of `shadowroot` is 0.01% [1], which is > relatively high. The hope is that as developers learn about the > now-standardized `shadowrootmode` attribute, and understand that it: 1. > supports streaming (which is preferred), and 2. is standardized, and should > appear soon in other browsers ...they will naturally migrate away from the > `shadowroot` attribute, and usage will drop. We will continue to monitor > the usage and will only attempt to remove the old attribute's functionality > when usage is sufficiently small. With this deprecation, a warning will > appear in the DevTools issues pane, which should help with developer > education. [1] > https://chromestatus.com/metrics/feature/timeline/popularity/3196 > > > *Gecko*: No signal > > *WebKit*: No signal > > *Web developers*: No signals > > *Other signals*: > > Activation > > Developer outreach will be important, to educate developers about the new > `shadowrootmode` attribute and behavior. > > > Security > > Not really applicable to this deprecation, but the security/XSS issues > that applied to `shadowroot` also apply to `shadowrootmode`. See > https://github.com/mfreed7/declarative-shadow-dom/blob/master/README.md#security-and-privacy-considerations. > I do not think this deprecation affects that issue. > > > 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? > > > > Debuggability > > N/A > > > Will this feature be supported on all six Blink platforms (Windows, Mac, > Linux, Chrome OS, Android, and Android WebView)?Yes > > Is this feature fully tested by web-platform-tests > <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md> > ?Yes > > Flag name > > Requires code in //chrome?False > > Tracking bughttps://crbug.com/1396384 > > Estimated milestones > DevTrial on desktop 112 > DevTrial on Android 112 > > Anticipated spec changes > > Open questions about a feature may be a source of future web compat or > interop issues. Please list open issues (e.g. links to known github issues > in the project for the feature specification) whose resolution may > introduce web compat/interop risk (e.g., changing to naming or structure of > the API in a non-backward-compatible way). > > > Link to entry on the Chrome Platform Status > https://chromestatus.com/feature/6239658726391808 > > 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/CAM%3DNeDhn62d2CEDggcQW0qW4EUiTX9GmMkesQp-1dPd4uRXndA%40mail.gmail.com > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAM%3DNeDhn62d2CEDggcQW0qW4EUiTX9GmMkesQp-1dPd4uRXndA%40mail.gmail.com?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/CAL5BFfWNS_jtGp1v0kdiiVfmfmC2MyxYfTd0zJiYgyJQS%2BpwjQ%40mail.gmail.com.
