[Webkit-unassigned] [Bug 50657] New: Attribute lost with Flash plugin without mime type set

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=50657

           Summary: Attribute lost with Flash plugin without mime type set
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Plug-ins
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: nicolas.dufresne at collabora.co.uk
                CC: xan.lopez at gmail.com, gns at gnome.org,
                    mrobinson at webkit.org


When a Flash animation is embedded into a page without the mime-type the <embed> tag attributes or <object> parameters are lost. I've track down this issue as only affecting ports that uses the PluginDatabase object, which means all of them EXCEPT Mac, Chromium and EFL.

The problem I see is that MIME-Type are not resolved using the PluginDatabase which result into some fallback that recreates the element when the type is finally found. I currently have a fix that make sure extensions are resolved with the plugin database before going into the fallback. I still need to write a test before sending it.

This issue breaks transparency of Flash animation on certain pages like this one:
http://www.flashdesignerzone.com/help/transparent.htm

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