is Video tag in html a POST request or GET request?
It will be a simple GET request, just like any other resource embedded in an HTML document.
If you really want to examine exactly what browsers send, then use something like Charles or the Net tab of Firebug.
I  am iusing  in my html. I am trying to handle the request on server side using python BaseHTTPServer. I want to figure out how the request from video tag looks like???