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I have an old service working on frameset-frame (I know it's deprecated but I have no choice) and users can add youtube iframe tags. but from some point the fullscreen action is not working anymore(it used to work). There's allowfullscreen attribute added already.

<iframe width="560" height="315" src="https://www.youtube.com/embed/Ea9pOiwzd0c" frameborder="0" allowfullscreen></iframe>

I tried allowfullscreen on frameset and frame tag also. I have tried like 

allowfullscreen
allowfullscreen="true"
allowfullscreen="allowfullscreen"
mozallowfullscreen="mozallowfullscreen"
msallowfullscreen="msallowfullscreen"
oallowfullscreen="oallowfullscreen"
webkitallowfullscreen="webkitallowfullscreen"

... everything I can find on web but nothing worked for me.

Cupe
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  • possible duplicate of https://stackoverflow.com/questions/15114884/make-youtube-video-fullscreen-using-iframe-and-javascript-api – ReyAnthonyRenacia Nov 21 '17 at 13:25
  • @noogui thx for the answer. unfortunately, the link is not about my question :( although mine is not only about fullscreen but also frameset(old, deprecated tag). I don't think youtube cares about it. No blame since it's deprecated but please take a look at this. it dosen't look that hard to add the option. – Cupe Nov 30 '17 at 02:20

1 Answers1

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You can try

allowfullscreen=true
J.Chen
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