This workaround also worked in my community when embedding videos from Vidyard.
This is great, thanks for adding this!!
Is there any way to make the viewer contain a full screen link?
please note that in the current Cloud version, this "hack" is no longer needed. Wistia videos can be embedded directly in the RTE.
In addition, when doing so you will see the Wistia full screen icon in the bottom right as below:
To do that you simply:
2/ Choose "embed video" option
3/ enter the wistia video URL and click import video.