Default Chrome opening some video embedded and some with YouTube player


Am running 4.4.2 with beanstalk ROM. Question is, when watching videos from reddit links, some of the videos will open directly into the YouTube player, then some will open into the embedded chrome tab, where you have to click on play, then it opens the YouTube player and the video starts.
Is there a way of defaulting it to open just with the player, or is it the link that decides which way it opens?
Have tried clearing the defaults on the chrome and the YouTube player but it didn't seem to make any difference

Many thanks

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