Am I not allowed to embed youtube videos in course About page? (iframes being stripped)

So I noticed the pull request got rejected, but I decided to go ahead and try this anyway. Long story short, after a couple weeks I noticed that my capability to generate grade reports had broken, and I couldn’t figure our why, since I didn’t think I had done any new major or breaking changes to the platform! I only figured this out by reverting my repository back to the version before this change, and then reports started working again.

So a warning to others, don’t attempt to use this patch as-is!

I guess in the future it will require the more complicated change to clean_dangerous_html which I don’t know how to do. @ghassan do you know how to do that? If so, I can test it on Nutmeg (which I’ll be upgrading to Olive soon.)