There is an option to use an iFrame within the popup and the other plugins. It works really well! However, there is one (big) issue with the iFrame embed. If I want to access the microphone or video camera within an iFrame, I need to add the following attribute - allow="microphone" - to the iFrame code in order to get access to the microphone of the viewer (I have a recording script for viewers to leave me messages).

Let's use the example below. It is a normal iframe script, it works statically added to a page. If I add the allow="microphone" then I get access to the microphone, same for the camera.

<iframe src="https://www.test.com" style="border:0px #ffffff none;" name="myiFrame" scrolling="no" frameborder="1"allow="microphone"marginheight="0px" marginwidth="0px" height="400px" width="600px" allowfullscreen></iframe>

However, there is no option to add any additional attributes in the iFrame widget. More attributes would really upgrade this feature!