On Wed, May 21, 2025 at 9:48 PM Mike Taylor <miketa...@chromium.org> wrote:
> On 5/20/25 10:07 PM, Domenic Denicola wrote: > > (Feature-collaborator hat on, API owners hat off.) > > Thanks for sending this! A few minor corrections here, that it'd be good > to make to the ChromeStatus entry. > > On Wed, May 21, 2025 at 10:42 AM Chromestatus < > ad...@cr-status.appspotmail.com> wrote: > >> Contact emails steven...@microsoft.com >> >> Explainer >> https://github.com/WICG/nav-speculation/blob/main/clear-site-data-integration.md >> >> Specification >> https://chromium-review.googlesource.com/c/chromium/src/+/6456388 > > > This is not a specification, but instead a Chromium CL. You can link to > https://wicg.github.io/nav-speculation/prefetch.html#clear-site-data-patches > and > https://wicg.github.io/nav-speculation/prerendering.html#interaction-with-clear-site-data > for the specification. > > Thanks for linking these, Domenic. > > Has there been any discussion with WebAppSec about future integration with > the clear-site-data spec? I tried to find an issue or agenda topic, but > didn't come up with anything. > There has not, so thank you for reminding us to do that. I've posted this issue <https://github.com/w3c/webappsec-clear-site-data/issues/89>. Since clear-site-data is unmaintained (it's actually listed in the W3C dashboard of specs which could benefit from more maintenance <https://github.com/w3c/spec-maintenance/wiki/Spec-list>), I don't have high hopes for this issue getting much of a response. Furthermore, since prefetch and prerender are still in incubation in general, I think it's reasonable to keep using the monkey-patch model for them until upstreaming happens. (We hope to work on upstreaming for prefetch later this year <http://github.com/whatwg/html/issues/11123>.) That is, it would feel weird to add these values directly to the clear-site-data spec and have it call out to a still-incubating spec. But you're overall totally right to call us out that the correct thing to do when monkey-patching is to alert the upstream community, so thank you for that. > > >> >> >> Summary >> >> We propose adding two new values to the Clear-Site-Data header to help >> developers target clearing the prerender and prefetch cache: >> “prefetchCache” and “prerenderCache”. >> >> >> Blink component Blink>Loader>Preload >> <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3ELoader%3EPreload%22> >> >> TAG review https://github.com/w3ctag/design-reviews/issues/1091 >> >> TAG review status Pending >> >> Risks >> >> >> Interoperability and Compatibility >> >> None >> >> >> *Gecko*: Positive ( >> https://github.com/mozilla/standards-positions/issues/1214) >> >> *WebKit*: No signal ( >> https://github.com/WebKit/standards-positions/issues/488) >> >> *Web developers*: No signals >> > > We have positive signals from engineers at Shopify at > https://github.com/WICG/nav-speculation/issues/357#issuecomment-2766677746 > , as well as a separate engineer (*using* Shopify) at > https://github.com/WICG/nav-speculation/issues/352 . > > >> >> >> *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 >> >> >> Debuggability >> >> None >> >> >> Will this feature be supported on all six Blink platforms (Windows, Mac, >> Linux, ChromeOS, Android, and Android WebView)? No > > > It's good to explain the reason here. The reason is that speculation rules > prefetch and prerender is not yet supported on Android WebView. > > >> >> >> Is this feature fully tested by web-platform-tests >> <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md> >> ? No >> >> Adding tests. >> > > I think you already added the tests in > https://chromium-review.googlesource.com/c/chromium/src/+/6456388 , and > they're now visible at > https://wpt.fyi/results/speculation-rules?label=master&label=experimental&aligned&q=clear-site-data > . > > >> >> >> Flag name on about://flags ClearSiteDataPrefetchPrerenderCache > > > This is actually the Finch feature name. We don't have any flag name on > about://flags. > > >> >> >> Finch feature name None >> >> Non-finch justification None >> >> Rollout plan Will ship enabled for all users >> >> Requires code in //chrome? False >> >> Tracking bug https://issues.chromium.org/issues/398149359 >> >> Estimated milestones >> >> No milestones specified >> > > I think we're targeting 138. > > >> >> >> 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). >> None >> >> Link to entry on the Chrome Platform Status >> https://chromestatus.com/feature/4755745652080640?gate=5143125462614016 >> >> Links to previous Intent discussions Intent to Prototype: >> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/680bb74f.170a0220.15e62e.053b.GAE%40google.com >> >> >> 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 visit >> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/682d2f79.170a0220.2aa17e.1064.GAE%40google.com >> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/682d2f79.170a0220.2aa17e.1064.GAE%40google.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 visit > https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAM0wra_oZxMAzyCKF3%3DY7Yt9s%3DS5C4C8CJ5pPM%3D2NXGGyj3dfQ%40mail.gmail.com > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAM0wra_oZxMAzyCKF3%3DY7Yt9s%3DS5C4C8CJ5pPM%3D2NXGGyj3dfQ%40mail.gmail.com?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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