tareq
1
Type
Video
What is the error message?
Can’t hide the PIP
What is the issue you’re encountering
Can’t hide the PIP
What steps have you taken to resolve the issue?
I removed the picture-in-picture from the allow tag, but the button still retuned in the iframe
Screenshot of the error
fritex
2
How does your code of implementation for the video look like? 
Does iframe
contain such attribute, e.g. allow="accelerometer; gyroscope; autoplay; encrypted-media; picture-in-picture;"
?
If so, please remove picture-in-picture;
from it and re-test with Incognito mode (Private Window), clear your cache & data and refresh (F5) the page.
Do you see this in a different Web browser as well, or only in some particular one such as Google Chrome?
Otherwise, you could generally disable the picture-in-picture
in your Web browser such as Firefox in the Web browser settings:

Helpful article:
For Google Chrome use chrome://flags/
: