Hi, I have reviewed this document as part of the Operational directorate's ongoing effort to review all IETF documents being processed by the IESG. These comments were written with the intent of improving the operational aspects of the IETF drafts. Comments that are not addressed in last call may be included in AD reviews during the IESG review. Document editors and WG chairs should treat these comments just like any other last call comments. This document’s intended status is in the Standards Track, and defines labels for Application Layer Protocol Negotiation (ALPN) to be used in identifying WebRTC (webrtc, and c-webrtc). The document is short, simple, well organized and very easy to read and follow. It is precise in the use of language, and does not have unaddressed operational considerations. Summary: Ready with a couple of questions Major: None. Minor: 3. Media Confidentiality A browser is required to enforce this confidentiality protection using isolation controls similar to those used in content cross- origin protections (see Section 5.3 [1] of [HTML5]). Is this “required” or “REQUIRED”? Seems it should be the latter. Nits: None. I hope these comments are useful. Thanks, — Carlos. Attachment: signature.asc Description: Message signed with OpenPGP using GPGMail