Test
fmt
{ "ns": "yt", "el": "detailpage", "cpn": "tW7IZQ3mRPee6czd", "docid": "mNSrgkUCu_Q", "ver": 2, "referrer": "https://accounts.google.com/", "cmt": "39.22", "ei": "EituYNG5GIWXir4Plr-0wA0", "fmt": "134", "fs": "0", "rt": "41.868", "of": "wbAUJoLFDaeeOSJrHXH
u_OkQuality6063