[Webkit-unassigned] [Bug 47717] New: [GTK] Do a stricter check for invalid base64 dataURLs

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=47717

           Summary: [GTK] Do a stricter check for invalid base64 dataURLs
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Mac OS X 10.5
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: svillar at igalia.com


In https://bugs.webkit.org/show_bug.cgi?id=47666 we rolled back a more strict version of base64 decoding added in https://bugs.webkit.org/show_bug.cgi?id=44261 because the test LayoutTests/editing/undo/orphaned-selection-crash-bug32823-2.html started to fail.

As commented here https://bugs.webkit.org/show_bug.cgi?id=47661#c10 the actual problem was not the test but the new code in ResourceHandleSoup.cpp that incorrectly does not finish the load of the dataURL if the base64 decoding fails.

We should restore the old strict base64 decoding and gracefully end the load when an error occurs.

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