443 to 5001 port webpage normal, unable to play video and download

Hello everyone! I am new here and I am from China.
Our network management is very strict, and these ports 80,8080,443 are blocked.
I modify it through the nginx port
80 5000
443 5001
The website is accessible, but the video cannot be played
Click to download below the video
The open link is port 80
Is there any way to modify the port perfectly

You have to change the port in the peertube config file (/var/www/peertube/config/production.yaml). Change the key webserver/port from 443 to 5001.