[Webkit-unassigned] [Bug 15246] New: Scroll bar removed during page load is not repainted properly

[bugzilla-daemon at webkit.org]

http://bugs.webkit.org/show_bug.cgi?id=15246

           Summary: Scroll bar removed during page load is not repainted
                    properly
           Product: WebKit
           Version: 522+ (nightly)
          Platform: Macintosh
               URL: https://www.hdnl.co.uk/Index.aspx?PageId=3
        OS/Version: Mac OS X 10.4
            Status: NEW
          Keywords: NeedsReduction
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: ddkilzer at webkit.org
                CC: mitz at webkit.org


* SUMMARY
When the page is loaded, a temporary vertical scroll bar is painted but later
removed when it's not needed.  Unfortunately, the content behind the scroll bar
is not fully repainted, leaving remnants of the scroll bar after the page has
loaded.

* STEPS TO REPRODUCE
1. Launch Safari/WebKit.
2. Go to URL:  https://www.hdnl.co.uk/Index.aspx?PageId=3
3. Reload page until you see scroll bar remnants left on the right side of the
page.

* EXPECTED RESULTS
No scroll bar remnants should be left on the page after it's done loading.

* ACTUAL RESULTS
Scroll bar remnants are left on the page after it loads.

* REGRESSION
Safari 2.0.4 (419.3) with original WebKit on Mac OS X 10.4.10 (8R218) CRASHES
with a null pointer.

Repaint issue seen with a local debug build of WebKit r25671 with Safari 3
Public Beta v. 3.0.3 (522.12.1) on Mac OS X 10.4.10 (8R218).

Unfortunately, this appears to be a progression.  :)

* NOTES
Reproducing this issue may depend on the size of the browser window.


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