[Webkit-unassigned] [Bug 150168] New: Scrolling iframe inside scrollable div does not work with trackpad

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=150168

            Bug ID: 150168
           Summary: Scrolling iframe inside scrollable div does not work
                    with trackpad
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Macintosh
                OS: Mac OS X 10.11
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: anders at roxen.com

Created attachment 263154
  --> https://bugs.webkit.org/attachment.cgi?id=263154&action=review
Testcase source

Open http://output.jsbin.com/zetevuyaqa in Safari 9 or nightly and try to scroll the iframe (picture) with a MacBook trackpad. The frame will not scroll.

Scroll down the outer div to the bottom position and try to scroll the iframe again. The iframe can now be scrolled down, but not up.

If the outer div's scroll position is not an any of the top or bottom endpoints the iframe can not be scrolled at all.

It is not entirely consistent and sometimes the areas can be scrolled with quick and slightly angled scroll gestures.


Using a mouse with a wheel works as expected. Other browsers (FF, Chrome) including Safari 8 does not have the problem with a trackpad.

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.webkit.org/pipermail/webkit-unassigned/attachments/20151015/73f7bdef/attachment.html>