[Webkit-unassigned] [Bug 193997] New: After the fix for bug 192529, fast/scrolling/ios/hit-testing-iframe.html fails

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=193997

            Bug ID: 193997
           Summary: After the fix for bug 192529,
                    fast/scrolling/ios/hit-testing-iframe.html fails
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: simon.fraser at apple.com

fast/scrolling/ios/hit-testing-iframe.html is doing frame scrolling in the UI process. Sometime during the interaction with the last frame ("clickElementInsideFrameAfterUserScroll"), we get a full scrolling tree update from the web process which clobbers the scroll position back to 0,0, causing the last hit test to fail.

This suggests that iOS frame scrolls aren't getting back to the web process. It also suggests that maybe we need to be more incremental about reconnecting subframe scrolling tree nodes to avoid churn.

I'll mark the test as failing for now.

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