[Webkit-unassigned] [Bug 175346] New: Default passive touch event listeners on document

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=175346

            Bug ID: 175346
           Summary: Default passive touch event listeners on document
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: HTML Events
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: dino at apple.com

Interacting/scrolling pages on iOS is often a terrible experience because the page has poorly performing synchronous touch event handlers. This proposed intervention makes document-level listeners passive by default (meaning they can't call preventDefault to stop scrolling).

https://github.com/WICG/interventions/issues/35
https://docs.google.com/document/d/1II7oSIpd8pK91V5kEM3tDLKcIj398jOJn8Niqy6_loI/edit

https://github.com/whatwg/dom/issues/365

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