Search the source for:
You will find a block like this:
Code:
{"bitrate":3000,"security_profile":["progressive","encrypted_hls","tokenization"],"format":"mp4","id":"53f409af1a18d356f7000010","width":"1280","height":"720","url":"http://cdn.secure.videos.dolimg.com/production/secure/xd_shortform/unknown/lf00788/2e4fc9-hlf00788_clonewars_601-h264m_aac_1280x720_2904x96.mp4?nvb=20160523144258&nva=20160523214258&token=0f1d1ab2b94227d449fe1"}
Just grab the URL:
Code:
http://cdn.secure.videos.dolimg.com/production/secure/xd_shortform/unknown/lf00788/2e4fc9-hlf00788_clonewars_601-h264m_aac_1280x720_2904x96.mp4?nvb=20160523144258&nva=20160523214258&token=0f1d1ab2b94227d449fe1