Summary: A CSS property that allows web developers to control what scroll boundary actions performed by the browser (such as scroll handoff to a parent scrollable element, visual overscroll effect, swipe navigation, etc.) should apply to a scrollable element.
Tracking bug: https://bugzilla.mozilla.org/show_bug.cgi?id=951793 Draft spec: https://wicg.github.io/scroll-boundary-behavior/ Platform coverage: The CSS property will be supported on all platforms. The browser's default boundary actions may vary from platform to platform (for example, Firefox currently shows a visual overscroll effect on Android but not on desktop platforms). Estimated target release: Behind a pref: Firefox 58 (estimated) Enabled by default: TBD Preference behind which this will be implemented: layout.css.scroll-boundary-behavior.enabled DevTools support: I don't believe any special support is required beyond adding the property to the list of properties surfaced by the inspector. Support by other browser engines: Blink: Yes, will ship in Chrome 63 [1] Edge: Public support [2] WebKit: No public signals Tests: The Blink implementers have upstreamed a web-platform-test [3]. I plan to look into getting that to run on Firefox. Additional test cases can be added to it if necessary. Cheers, Botond [1] https://www.chromestatus.com/features/5734614437986304 [2] https://discourse.wicg.io/t/generic-scroll-chaining-prevention-mechanism-or-expand-standardize-ms-scroll-chaining/1811/5?u=majidvp [3] http://searchfox.org/mozilla-central/rev/d30462037ffea383e74c42542c820cf65b2b144e/testing/web-platform/tests/cssom-view/scrollBoundaryBehavior-manual.html _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
