Bug 164016 - Making document-level touchstart/touchmove listeners passive by default
Summary: Making document-level touchstart/touchmove listeners passive by default
Status: RESOLVED DUPLICATE of bug 175346
Alias: None
Product: WebKit
Classification: Unclassified
Component: DOM (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-10-26 08:21 PDT by Rick Byers
Modified: 2019-02-06 09:18 PST (History)
5 users (show)

See Also:


Attachments

Note You need to log in before you can comment on or make changes to this bug.
Description Rick Byers 2016-10-26 08:21:25 PDT
Chrome is planning on shipping a breaking change (https://github.com/WICG/interventions/issues/35) to make document-level (window,document,body) touchstart and touchmove listeners passive by default.  We've seen huge scroll performance improvements (~40% overall reduction in 99th percentile scroll start time) and relatively little breakage from this.

If we can succeed in moving most remaining websites to adopt touch-action (a very simple fix) and therefore show that such a change is entirely web compatible, is this change something the WebKit project would consider?  Or is there any reason (other than web compat concerns) why it would be a bad idea for WebKit?
Comment 1 Dean Jackson 2017-08-21 15:01:55 PDT
Forward duping to https://bugs.webkit.org/show_bug.cgi?id=175346 (because it has more content)

*** This bug has been marked as a duplicate of bug 175346 ***
Comment 2 Lucas Forschler 2019-02-06 09:18:27 PST
Mass move bugs into the DOM component.