Audio and video files are currently written to the Application Cache without any file extension. This makes it difficult for some media engines to open these files.
<rdar://9524922>
Created attachment 95386 [details] Proposed patch
http://trac.webkit.org/changeset/87704
Revision r87704 cherry-picked into qtwebkit-2.2 with commit 3ab8247 <http://gitorious.org/webkit/qtwebkit/commit/3ab8247>