<!DOCTYPE html> <html> <body> <video id="video1" controls="controls" onloadeddata="alert('Browser has loaded the current frame')"> <source src="/static/demo/video/mov_bbb.mp4" type="video/mp4"> <source src="/static/demo/video/mov_bbb.ogg" type="video/ogg"> Your browser does not support HTML5 video. </video> </body> </html>