YouTube full screen is unavailable?

Hi for some reason the full screen button on a YouTube video doesn’t work when on a web page hosted on my Digital Ocean droplet. When clicking full screen it says “Full screen is unavailable”. Here’s a screenshot -

Another developer added the exact same code to his server on Cloudflare and the full screen button works.

I have no idea why it works on Cloudflare and not Digital Ocean.

Please can someone help fix this?

How is a server setting preventing full screen from working?

Here’s the HTML -

<!DOCTYPE html>
    <meta name='robots' content='noindex, nofollow'>
    <iframe src="" frameborder="0" marginheight="0" marginwidth="0" width="100%" height="522px" scrolling="auto" allowfullscreen></iframe>        

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Accepted Answer

Full screen now works! I have removed fullscreen ‘none’ from /etc/apache2/apache2.conf

This is the line it was removed from -

Header always set Feature-Policy "fullscreen 'none'; geolocation 'none'; midi 'none; notifications 'none'; push 'none'; sync-xhr 'none'; microphone 'none'; camera 'none'; magnetometer 'none'; gyroscope 'none'; speaker 'none'; vibrate 'none'"
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July 27, 2022

Hi @twc8ac35a8636,

This shouldn’t be related wheter you are under Cloudflare or DigitalOcean. What I would assume is there is an issue with your iframe.

Try with one of the following:

<iframe allow="fullscreen;">

Some might be depricated however I do believe adding allow=“fullscreen;” to the iframe HTML tag would help.

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