2020-03-11-博客嵌套视频测试

https://weibo.com/tv/v/Iy7qauM6Q?fid=1034:4481315127623700

http://media.w3.org/2010/05/sintel/trailer.mp4

http://f.video.weibocdn.com/Vd1C8rlNlx07BCfb1cYE01041201qryo0E010.mp4?label=mp4_hd&template=852x480.25.0&trans_finger=1621fcd5d40969f1c74e6b06e52fcd54&Expires=1583923063&ssig=nxZ8wuRZ5K&KID=unistore,video