I'm creating a Wordpress site using HelpGuru by HeroThemes (https://herothemes.com/)
I added an iframe to show a vimeo video. This is my code snippet:
<div style="padding:55.83% 0 0 0; position:relative;">
<iframe src="(url)" frameborder="0" allow="autoplay; fullscreen; picture-in-picture" allowfullscreen style="position:absolute ;top:0; left:0; width:100%; height:100%;" title="(title)">
</iframe>
</div>
<script src="https://player.vimeo.com/api/player.js"></script>
I removed the original url and title of anonymous reasons.
What I expect, and what I also get when I add this code snippet in any html editor (like W3Schools') is to display the video including a fullscreen button to show the video in fullscreen.
However the button is always missing.
What I tried:
I added allow="fullscreen" (How to enable fullscreen in IFrame) aswell as the allowfullscreen tag (see iframe docs).
In the wordpress preview it also does seem to work. Theres no extra styling added to it.
I also tried to have a look at the iframe with the chrome dev tools, there the buttons' display property is set to "none". However just forcing it to be "flex" is not going to work, as the button would not do anything then.
