I use an appear.in video chat room (included in my left course navigation)* and instead of "force open in new tab" I chose to embed the videochat-room inside my Canvas course.
it works fine for the webcams, but the written chat is invisible (even if someone following the conversation from outside the course writes into the chat).
does somebody know why this happens? maybe we should tell appear.in so they can change something (obviously the appear.in application assumes the chat is working in my embedded window, since it prompts me to say hello or write something nice into the chat...)
*for those who want to know more about appear.in in Canvas, there is a great tutorial inside the CanvasHacks Demo Course here!