Access to XMLHttpRequest at 'https://r4---sn-4g5edney.googlevideo.com/videoplayback?ms=au%2Crdu&mv=m&mt=1542806453&clen=52463779&ip=82.218.173.66&sparams=aitags%2Cclen%2Cdur%2Cei%2Cgir%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Ckeepalive%2Clmt%2Cmime%2Cmm%2Cmn%2Cms%2Cmv%2Cpl%2Crequiressl%2Csource%2Cexpire&dur=607.099&id=o-AGA7G37gvfiRlo_rYYXaeTcomJ7NxHFZoAglu1znAA_Y&c=WEB&mn=sn-35cxanpbo5a-8pxl%2Csn-4g5edney&mime=video%2Fwebm&gir=yes&signature=A312BE6167BF38BE0E9F7B2E8D7E56AFBFACE936.C23764021F1BA496C0E7002E2FD6CE185C13EE8B&mm=31%2C29&aitags=133%2C134%2C135%2C136%2C137%2C160%2C242%2C243%2C244%2C247%2C248%2C278%2C298%2C299%2C302%2C303&expire=1542828187&lmt=1542599245809625&txp=3532432&pl=16&initcwndbps=1423750&ipbits=0&source=youtube&key=yt6&requiressl=yes&ei=O1z1W6KjDZTBgQeGp5rIAw&itag=244&fvip=4&keepalive=yes&alr=yes&cpn=nU0Da9Bsm42wspRe&cver=2.20181117&fallback_count=1&range=0-2348&rn=15&rbuf=0' from origin 'https://www.youtube.com' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.