LGTM1 to extend this already-approved feature to WebView. Presumably you'll be chatting with WebView experts about any implications this might have for the API WebView exposed to embedding apps?
-mike On Wed, Aug 3, 2022 at 8:45 PM Ari Chivukula <aric...@chromium.org> wrote: > Contact emails > > aric...@chromium.org, miketa...@chromium.org, yoavw...@chromium.org > <yoavwe...@chromium.org> > > Specification > > https://wicg.github.io/client-hints-infrastructure/ > > Explainer > > When a page is loaded, the first response from an origin may include a > signal (in HTTP headers) for Client Hints to be included in future requests > to that origin. Without persisting this signal, Client Hints cannot be > included in the next request to load a page from this Origin. Android > WebView does not currently persist this signal. > > Design Doc > > > https://docs.google.com/document/d/1r1AKHex1_UKh3wIp4ITkU4-J9-tdNZSOmUDeDVWw_AU/ > > Summary > > We aim to add support for persistent Client Hints to Android Webview for > parity with the rest of the platform. For more details on the Client Hints > system see: https://developer.mozilla.org/en-US/docs/Web/HTTP/Client_hints > > > > Blink component > > Blink>Network>ClientHints > <https://bugs.chromium.org/p/chromium/issues/list?q=component%3ABlink%3ENetwork%3EClientHints> > > > > Motivation > > Without persisting the list of Client Hints a page requests the initial > load of a website will never include Client Hints, only subresources on a > given page can receive them. This undermines the use of the Client Hints > system which is to empower websites to adapt content to the User Agent. We > should add persistence in the interest of parity with the behavior of > Chrome on Android so that WebView stays viable as a platform. > > TAG review > > N/A (this change enables a feature that we already ship on desktop and > Android) > > Compatibility > > This expands persistent Client Hints to a platform that was missing it, no > existing implementation will change. The persisted Client Hints can be > cleared by clearing the Cookies for a given WebView, the same way that > Client Hints are cleared in Chrome for Android. > > > Interoperability > > Other engines haven’t shipped Client Hints so this doesn’t increase > interoperability risk. > > > > Gecko: Client Hints > <https://github.com/mozilla/standards-positions/issues/79> and User Agent > Client Hints <https://github.com/mozilla/standards-positions/issues/202> > considered non-harmful > > > > WebKit: Mildly positive support for User Agent Client Hints > <https://lists.webkit.org/pipermail/webkit-dev/2020-May/031198.html> > > > > Web developers: Vendor interest from Huawei > <https://bugs.chromium.org/p/chromium/issues/detail?id=921655&colspec=ID%20Pri%20Type%20Component%20Status%20Summary%20Owner%20Target%20M%20Reporter%20Modified%20Opened%20NextAction&sort=nextaction#:~:text=it%20looks%20good-,Comment%2044,-by>, > interest from Cloudinary > <https://github.com/WICG/client-hints-infrastructure/issues/108> in User > Agent Client Hints > > Debuggability > > N/A (developers can use Chrome for Android to debug client hint requests, > though the values for user-agent related strings will differ within the > WebView context) > > Is this feature fully tested by web-platform-tests? > > Android WebView is not a WPT platform, so this will only have chrome > internal tests > > Tracking bug > > https://crbug.com/921655 > > Link to entry on the Chrome Platform Status > > https://chromestatus.com/feature/4936247663919104 > > -- > 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/CAGpy5D%2BZnn79sLfnTBa84Q_aCmg%2BWsAeZBqLo9MCA335gYg_nw%40mail.gmail.com > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAGpy5D%2BZnn79sLfnTBa84Q_aCmg%2BWsAeZBqLo9MCA335gYg_nw%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/CAKXHy%3Dd_6zWscYe_-dCSmbjze3PQCyKzDLUT06h5cb9A3gxWdA%40mail.gmail.com.
