[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.

Tested in company and set RTBC.

jan kellermann → credited sascha_meissner → .

Thank you very very much @jan kellermann! Great work once again!