Once this PR has been reviewed and has consensus from the working group, tests should be written and issues should be opened on browsers. Add N/A and check when not applicable.
[ ] "author MUST" tests:
[ ] "user agent MUST" tests:
[ ] Browser implementations (link to issue or commit):
Closes #????
Describe Change Here!
Test, Documentation and Implementation tracking
Once this PR has been reviewed and has consensus from the working group, tests should be written and issues should be opened on browsers. Add N/A and check when not applicable.