Problem/Motivation
While working on #2998091-66: Remote videos overflow their containing element, the question was raised if we should allow JavaScript to be attached inside the oEmbed content iframe. That issue disallowed it in order to keep the scope limited, but we agreed to open this follow-up issue to discuss and possibly implement the ability to attach JavaScript too.
Proposed resolution
TBD, once #2998091: Remote videos overflow their containing element lands.
Remaining tasks
TBD.
User interface changes
TBD, but probably none.
API changes
TBD, probably none.
Data model changes
None.
Release notes snippet
TBD