Just transfer the file to the specified directory without using PHP Python and other background processing
Test upload
Select files to upload
Just use this to upload a simple page, and then nginx can directly specify a path to save it without any background processing.
nginx itself should not support it, and nginx does not natively support cgi, so it seems that you either have to write an nginx plug-in to do this, or you should use fastcgi. Here is a simple guide to configure nginx to "support cgi": http://wiki.nginx.org/SimpleCGI
I don’t think so, because you have to complete the file stream transmission. How do you implement this as a single HTML?