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Explainer https://github.com/WICG/nav-speculation/blob/main/prerendering-form-submission.md Specification https://storage.googleapis.com/spec-previews/WICG/nav-speculation/pull/426/diff/prerendering.html Design docs https://docs.google.com/document/d/13Xr_kSYZtvhRNaKpCiP7wLKYtDcpLdDWSH4y6gHq0kQ/edit?usp=sharing Summary This extends speculation rules syntax to allow developers to specify the form_submission field for prerender. This field directs the browser to prepare the prerender as a form submission, so that it can be activated by real form submission navigations. Examples include a simple search form which results in a /search?q=XXX GET request navigation, support of which has been requested by web developers. Blink component Internals>Preload>Prerender Web Feature ID speculation-rules TAG review https://github.com/w3ctag/design-reviews/issues/1192 TAG review status Issues open Risks Interoperability and Compatibility The entire speculative loading feature is a progressive enhancement, so in general risks are low in this area. Gecko: No signal (https://github.com/mozilla/standards-positions/issues/1355) WebKit: No signal (https://github.com/WebKit/standards-positions/issues/614) Web developers: No signals Other signals: Ergonomics No 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? No information provided Goals for experimentation No information provided Ongoing technical constraints No information provided Debuggability As well as other speculationrule features, this feature can be viewed on devtools as the source script. Another dedicated field will be added to the panel for easier debugging. Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, ChromeOS, Android, and Android WebView)? No Windows, Mac, Linux, ChromeOS, Android. WebView doesn't support speculation rules prerendering because prerendering navigation breaks the lifecycle (eg, callback sequence) of the WebView. Is this feature fully tested by web-platform-tests? Yes Flag name on about://flags PrerenderActivationByFormSubmission Finch feature name PrerenderActivationByFormSubmission Requires code in //chrome? False Tracking bug https://issues.chromium.org/issues/346555939 Measurement Blink.UseCounter.Features https://crrev.com/c/7533307 Estimated milestones Origin trial desktop first 146 Origin trial desktop last 151 DevTrial on desktop 146 Origin trial Android first 146 Origin trial Android last 151 DevTrial on Android 146 Link to entry on the Chrome Platform Status https://chromestatus.com/feature/5074313831120896?gate=5966135017209856 Links to previous Intent discussions Intent to Prototype: https://groups.google.com/a/chromium.org/d/msgid/blink-dev/698f0243.2b0a0220.19817b.0194.GAE%40google.com This intent message was generated by Chrome Platform Status. -- 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 [email protected]. To view this discussion visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/69aa2f3b.2b0a0220.c2d7.0503.GAE%40google.com.
