. . .
It is inappropriate to cite this document as other than
work in progress.
For this specification to exit the Candidate Recommendation stage, two independent implementations as detailed in the CR Exit Criteria (Public Permissive version 3) document will be required to pass each test in the MSE test suite to be developed by the HTML WG.
No
implementation report yet exists for this specification.
Implementors should be aware that this specification is not stable. Implementors who are not taking part in the discussions are likely to find the specification changing out from under them in incompatible ways.