How can I play videos from my server in Vaadin?

I created an IFrame on the page.
I think my videos should be embedded like youtube videos in this case -
I get videos using my controller:
IFrame iFrame = new IFrame(“/api/webinar/video/” + video.getId());
but it doesn’t work.
Can someone help me?

Maybe this will help:

Olli Tietäväinen:
Maybe this will help:

Genius! It really works! Thanks a lot)