The Web Application Security Working Group invites implementation of the Candidate Recommendation of Subresource Integrity. This specification defines a mechanism by which user agents may verify that a fetched resource has been delivered without unexpected manipulation.

The HTML Working Group invites implementation of the Candidate Recommendation of Media Source Extensions. This specification extends HTMLMediaElement to allow JavaScript to generate media streams for playback. Allowing JavaScript to generate streams facilitates a variety of use cases like adaptive streaming and time shifting live streams.