Why aren't we shipping? OT shouldn't be used as a soft-launch vehicle, so 
if we aren't going to learn anything here and the IETF conversation is only 
about the colour of the bikeshed, I'd rather we remove our trial and wait 
on consensus, or ship and force the issue.

Best,

Alex

On Wednesday, November 4, 2026 at 8:33:45 AM UTC-8 Chris Harrelson wrote:

> LGTM
>
> On Wed, Nov 4, 2026 at 5:40 AM Chromestatus <
> [email protected]> wrote:
>
>> *Contact emails*
>> [email protected], [email protected], [email protected], 
>> [email protected]
>>
>> *Explainer*
>> *No information provided*
>>
>> *Specification*
>> https://datatracker.ietf.org/doc/draft-hancke-tsvwg-snap 
>>
>> *Summary*
>> WebRTC Data Channels use the Stream Control Transmission Protocol (SCTP) 
>> over a Datagram Transport Layer Security (DTLS) association. The standard 
>> SCTP connection establishment requires a handshake that introduces latency. 
>> A new Internet draft specifies a method to accelerate the datachannel 
>> establishment by embedding the SCTP initialization parameters within the 
>> Session Description Protocol (SDP) offer/answer exchange. This reduces the 
>> time required to open a data channel by up to two network round-trip times. 
>>
>> *Blink component*
>> Blink>WebRTC>DataChannel 
>> <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EWebRTC%3EDataChannel%22>
>>
>> *Web Feature ID*
>> webrtc <https://webstatus.dev/features/webrtc> 
>>
>> *TAG review*
>> n/a, part of WebRTC covered by IETF drafts 
>>
>> *TAG review status*
>> Not applicable
>>
>> *Origin Trial Name*
>> WebRTC Data Channel: SCTP Negotiation Acceleration Protocol (SNAP)
>>
>> *Goals for experimentation*
>> This feature should be gated until the IETF has had a chance to adopt the 
>> current draft into a WG and we know whether changes will be required.
>>
>> *Chromium Trial Name*
>> WebRtcSctpSnap
>>
>> *Origin Trial documentation link*
>> https://datatracker.ietf.org/doc/draft-hancke-tsvwg-snap
>>
>> *WebFeature UseCounter name*
>> kRTCSctpSnapNegotiated 
>>
>> *Risks*
>>
>>
>> *Interoperability and Compatibility*
>> *No information provided* 
>>
>> *Gecko*: No signal
>>
>> *WebKit*: No signal
>>
>> *Web developers*: No signals
>>
>> *Other signals*:
>>
>> *WebView application risks*
>>
>> Does this intent deprecate or change behavior of existing APIs, such that 
>> it has potentially high risk for Android WebView-based applications? 
>> *No information provided* 
>>
>>
>> *Reason this experiment is being extended*
>> Presented the IETF 126 TSVWG (and asked for agenda time at the upcoming 
>> one), list discussion is at 
>> https://mailarchive.ietf.org/arch/msg/tsvwg/Kuq5b8FrZe0kDDkFw6NY77QP6Ww/ 
>> The only remaining open issue is how this gets represented in the SDP, 
>> which is expected to be settled by the next IETF meeting. Positive 
>> deployment feedback from Microsoft (improvement of 23% in P50 and 22% on 
>> P90 Transport setup latency) 
>> https://github.com/fippo/warp-snap-sped/issues/21#issuecomment-6308379637 
>> and mention in the OpenAI blog post: 
>> https://openai.com/index/continuous-voice-interaction-with-gpt-live/
>>
>> *Ongoing technical constraints*
>> *No information provided*
>>
>> *Debuggability*
>> *No information provided* 
>>
>> *Will this feature be supported on all six Blink platforms (Windows, Mac, 
>> Linux, ChromeOS, Android, and Android WebView)?*
>> Yes
>>
>> *Is this feature fully tested by web-platform-tests 
>> <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?*
>> No 
>>
>>
>> *Flag name on about://flags*
>> *No information provided* 
>>
>> *Finch feature name*
>> WebRtcSctpSnap 
>>
>> *Requires code in //chrome?*
>> False
>>
>> *Tracking bug*
>> https://issues.webrtc.org/issues/426480601
>>
>> *Measurement*
>> The UMA WebRTC.PeerConnection.NegotiatedSctpSnap is measured at 
>> connection setup, allowing measurement of the percentage of connections 
>> using the feature.
>>
>> *Estimated milestones*
>> Origin trial desktop first 151 
>> Origin trial desktop last 156 
>> Origin trial extension 1 end milestone 162 
>>
>> *Link to entry on the Chrome Platform Status*
>> https://chromestatus.com/feature/5137946677215232?gate=4906997945335808
>>
>> *Links to previous Intent discussions*
>> Intent to Experiment: 
>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CADxkKiJJzDXOUwYx%3DznrQz1hPkZCZnNWOAucF%2BK%3DoSymgGyDFA%40mail.gmail.com
>>
>>
>> This intent message was generated by Chrome Platform Status 
>> <https://chromestatus.com>. 
>>
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>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/6aeb35dd.95dfa6d9.3d0ae5.0276.GAE%40google.com
>>  
>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/6aeb35dd.95dfa6d9.3d0ae5.0276.GAE%40google.com?utm_medium=email&utm_source=footer>
>> .
>>
>

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