The imported expected file has FAIL/NOTRUN entries for the Mac port (it does not expect to run webm) and results in two FAIL entries for GTK/WPE (they run the webm case). * Running the video (LayoutTests/imported/w3c/web-platform-tests/media/400x300-red-resize-200x150-green.mp4 or webm) inside GTK MiniBrowser: Expected behavior: * Starts with red 400x300 * Switches to green 200x150 Current behavior: * Starts with both Red and Green rectangles stuck to 400x300 to the end. * After clicking to play again, the video starts with red 200x150 * Switches to green 400x300 * Sliding back to the red portion shrinks the dimensions again. WPT link: https://wpt.fyi/results/html/semantics/embedded-content/the-video-element/resize-during-playback.html?label=master&product=chrome%5Bexperimental%5D&product=firefox%5Bexperimental%5D&product=safari%5Bexperimental%5D&product=webkitgtk&aligned Given the error message in the expected file, looks like the first issue (not changing sizes) is also happening on Mac.
<rdar://problem/65853026>
Safari is only browseer failing this test case: https://wpt.fyi/results/html/semantics/embedded-content/the-video-element/resize-during-playback.html?label=experimental&label=master&aligned=