Is it possible to send a Teams chat or channel message that shows an embedded MP4 video in place? https://learn.microsoft.com/en-us/graph/api/chatmessage-post Attaching an MP4 simply adds as an attachment with no thumbnail or ability to play. Where as attaching a GIF adds an embedded player.
Is there documentation on the allowable valid HTML in the "content" json?
Apparently Team chats allow sending embedded webcam videos, which use a <video> tag, but I don't see any documentation on how that tag works, whether it works for channels, or how to store the content for it.
"body": {
"contentType": "html",
"content": "<div><video src="https://graph.microsoft.com/v1.0/chats/19:747ac51f-7c94-4ae8-9bc1-04f4c866a242_7758276b-c13b-4616-8699-0e3e01df8c29@unq.gbl.spaces/messages/1673299288334/hostedContents/aWQ9LHR5cGU9Mix1cmw9aHR0cHM6Ly91cy1hcGkuYXNtLnNreXBlLmNvbS92MS9vYmplY3RzLzAtY3VzLWQxNy0zMWVmMTMwOWI0M2YyZjNhNTczYWE0MzIwMGQ4MmRkMi92aWV3cy92aWRlbw==/$value" data-duration="PT5.503S" width="960" height="540">Video-Clip</video></div>"
},