With format set to gif or webp the file was saved, but the node's stage
stayed empty and said "Execution finished without video metadata".
The node has shown a gif or webp in an <img> since the two formats were
added, because a <video> cannot play either. The run's result was still
searched with a list of video file endings only, so for these two nothing
was found and the <img> was never filled. The list of picture endings now
sits beside that lookup in js/shared/video_preview.mjs, and both the
lookup and the choice of tag read it. A png is still not taken.
In the classic renderer a saved webp was also drawn a second time under
the stage. ComfyUI shows an animated webp in a widget of its own, neither
its video preview nor its picture preview, and only those two were stood
down. suppressCoreVideoPreview hides that widget as well. The node's
smallest height with a saved webp goes from 469 px back to 415 px.
Tests: the lookup finds a saved gif and webp and sends them to the <img>;
every row of the backend's VIDEO_FORMATS is read from its source and has
to be found and sent to the right tag; the animated widget is hidden on
arrival and when it is already on the node.
ausboss
0c404b37f3