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Explainer https://github.com/WICG/nav-speculation/blob/main/prerendering-form-submission.md Specification https://wicg.github.io/nav-speculation/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 Motivation Form submissions cannot activate prerendered pages currently by design, due to internal browser limitations. In at least Chrome, ordinary form submission navigations have special state and run extra checks that ordinary prerenders don't experience. This means that a form submission can never activate a prerender, because the prerender was not prepared properly as a form submission. In addition to the internal browser limitations, resources can be wasted on prerendering a page which is not eligible, such as CSP disallowing form-action. Initial public proposal https://github.com/WICG/nav-speculation/issues/322 Requires code in //chrome? False Tracking bug https://issues.chromium.org/issues/346555939 Measurement Blink.UseCounter.Features Estimated milestones DevTrial on desktop 146 DevTrial on Android 146 Link to entry on the Chrome Platform Status https://chromestatus.com/feature/5074313831120896?gate=5203276750520320 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/698f0243.2b0a0220.19817b.0194.GAE%40google.com.
