[Webkit-unassigned] [Bug 249187] New: Fix wrong scrolling behavior when a scrollbar is enabled but unscrollable

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=249187

            Bug ID: 249187
           Summary: Fix wrong scrolling behavior when a scrollbar is
                    enabled but unscrollable
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Scrolling
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ahmad.saleem792 at gmail.com
                CC: simon.fraser at apple.com

Hi Team,

This might be not direct bug but Webkit / Safari 16.1 behave differently compared to Chrome Canary 110 and Firefox Nightly 109 and does have overhang like scroll but it was regression in Chrome but I think fixing it to match with other browsers would be more ideal.

Blink Commit - https://src.chromium.org/viewvc/blink?revision=197615&view=revision

JSFiddle (show difference in Safari while trying to scroll) - https://jsfiddle.net/08hes9xv/show

Webkit GitHub Source - https://github.com/WebKit/WebKit/blob/dd82be82d070b9ec480db4497b44aad8c363df7d/Source/WebCore/platform/ScrollbarThemeComposite.cpp#L223 & https://github.com/WebKit/WebKit/blob/dd82be82d070b9ec480db4497b44aad8c363df7d/Source/WebCore/platform/Scrollbar.cpp#LL270

Just wanted to raise this bug so this can be confirmed or good to be fix, so I can do this merge.

Thanks!

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