Chrome error when embedding video url with iframe [duplicate]

Question

When I embed some url into page with iframe I'm getting the following error's in chrome console. Why is this happening?

GET chrome-extension://boadgeojelhgndaghljhdicfkmllpafd/cast_sender.js net::ERR_FAILEDfj @ www-embed-player-new.js:151ej @ www-embed-player-new.js:151dj @ www-embed-player-new.js:151ij @ www-embed-player-new.js:152gl @ www-embed-player-new.js:205so @ www-embed-player-new.js:301Dq @ www-embed-player-new.js:340(anonymous function) @ FQpUOimNvXA?showinfo=0:10     www-embed-player-new.js:22  GET https://static.doubleclick.net/instream/ad_status.js net::ERR_BLOCKED_BY_CLIENTlc @ www-embed-player-new.js:22ic @ www-embed-player-new.js:21fc @ www-embed-player-new.js:21xd @ www-embed-player-new.js:35Dq @ www-embed-player-new.js:341(anonymous function) @ FQpUOimNvXA?showinfo=0:10     www-embed-player-new.js:151  GET chrome-extension://dliochdbjfkdbacpmhlcpmleaejidimm/cast_sender.js net::ERR_FAILEDfj @ www-embed-player-new.js:151ej @ www-embed-player-new.js:151(anonymous function) @ www-embed-player-new.js:151c.onerror @ www-embed-player-new.js:151     www-embed-player-new.js:151  GET chrome-extension://hfaagokkkhdbgiakmmlclaapfelnkoah/cast_sender.js net::ERR_FAILEDfj @ www-embed-player-new.js:151ej @ www-embed-player-new.js:151(anonymous function) @ www-embed-player-new.js:151c.onerror @ www-embed-player-new.js:151     www-embed-player-new.js:151  GET chrome-extension://fmfcbgogabcbclcofgocippekhfcmgfj/cast_sender.js net::ERR_FAILEDfj @ www-embed-player-new.js:151ej @ www-embed-player-new.js:151(anonymous function) @ www-embed-player-new.js:151c.onerror @ www-embed-player-new.js:151     www-embed-player-new.js:151   GET chrome-extension://enhhojjnijigcajfphajepfemndkmdlo/cast_sender.js net::ERR_FAILEDfj @ www-embed-player-new.js:151ej @ www-embed-player-new.js:151(anonymous function) @ www-embed-player-new.js:151c.onerror @ www-embed-player-new.js:151     www-embed-player-new.js:151  GET chrome-extension://eojlgccfgnjlphjnlopmadngcgmmdgpk/cast_sender.js net::ERR_FAILEDfj @ www-embed-player-new.js:151ej @ www-embed-player-new.js:151(anonymous function) @ www-embed-player-new.js:151c.onerror @ www-embed-player-new.js:151 

Answer 1

Seems Like an AdBlocker extension in enabled. you can see the same types of errors on the YouTube page itself. These Extensions block certain Web-requests if they match some sort of ad related URI.