Report an error when playing video dynamically with video.js

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now there is a need to use video.js to play video resources dynamically selected by users. Users can manipulate the video at will:
for example:

video.jsloadedmetadataaviflvjqloadedmetadatavideo.jsvideo.js
:

html:

js:

:

set flash to allow and refresh the interface, but I still report this mistake, what"s going on? Use video.js, for advice for the first time. Thank you.

Video-player html jquery video.js

Mar.16,2021

when you try to set up src, specify the type of file to play mp4

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