This is migrated from http://crbug.com/104577 When <source>'s specify their mime-type using a type attribute, fallback works correctly (an unsupported type causes an error to fire and the next <source> is tried). When mime-type is instead specified inside a data: url in the src attribute, multiple errors are fired (according to --webcore-log-channels=Media) and the second <source> is never considered.
Created attachment 129494 [details] Patch
Comment on attachment 129494 [details] Patch Nice fix and test, thanks!
Comment on attachment 129494 [details] Patch Clearing flags on attachment: 129494 Committed r109298: <http://trac.webkit.org/changeset/109298>
All reviewed patches have been landed. Closing bug.
There's something wonky about the structure of the mp4 test files. The atom lengths of the movie add up to greater than the decoded length of the data. This is causing the test to fail on some Mac platforms as the media engines reject the file.
My apologies; I messed up a copy-paste operation.