[Webkit-unassigned] [Bug 117633] New: throwing away website plugins causes application to crash

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=117633

           Summary: throwing away website plugins causes application to
                    crash
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh Intel
               URL: http://www.sanquin.nl
        OS/Version: Mac OS X 10.8
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: j.gonggrijp at gmail.com


Created an attachment (id=204688)
 --> (https://bugs.webkit.org/attachment.cgi?id=204688&action=review)
Diagnostic report for a "clean" crash, depending only on the plugin deletion

Using WebKit nightly r151581 with Safari 6.0.4.

sanquin.nl leaves cookies and plugins on the visitor's computer. When I attempted to remove those, the application crashed. On restart I found that cookies and caches had been removed but plugins for sanquin.nl were still in the list in Settings -> Privacy -> Cookies/Info. On my second attempt to delete those plugins WebKit Nightly crashed again. I attached the diagnostic report for the latter crash.

In order to reproduce:
1. Visit http://www.sanquin.nl . You'll see a pop-up that asks (in Dutch) whether you accept cookies. Accept them.
2. Visit http://www.sanquin.nl/bloed-geven/ik-geef-bloed/wbdd/ in order to ensure that you receive the plugins. You may or may not need to press the triangular play button on the video.
3. Optionally, close the browser window (this should not make a difference).
4. Open the Settings panel, go to Privacy -> Cookies and click on the "Info..." button. This should give you the list of locally stored website data.
5. Scroll to "sanquin.nl" and select the list item with a shift- and command-free click. If it doesn't include plugins, go back to step 2.
6. Press the "Remove" or "Delete" button (I'm using the Dutch translation so I don't know what it's called in the English version). WebKit Nightly should crash.

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