[Discussion] Input filter for third party iframes etc.

jan kellermann → made their first commit to this issue’s fork.

I like the idea. I will open a MR to review.

I added a Text Filter and added information in the README.
I tested with plain html and a iframe from enabled media service.

Please review and give feedback.

Thank you very very much @jan kellermann I'll do so asap! (Or ask a colleague)

@jan kellermann sorry we're busy on projects that need to get finished this week, I can't promise I'll be able to review it this year, but it's on our radar. Thanks for your impressive work!

Issue branch updated, MR testable without merge conflict.