It seems appropriate to keep the Deprecation Trial until we shipped 
alternatives, but I tend to agree with Chris that 10 milestones sounds like 
a lot. Maybe we can renew the Deprecation Trial for 6 milestones (till 
M109), and revisit that once it's close to expiry?

On Tuesday, May 3, 2022 at 12:06:00 PM UTC+2 Arthur Sonzogni wrote:

>
> Does this metric count sites that have opted into the rOT?  My company has 
>> a web product hosted under dozens of domains that has the rOT registered 
>> for each one of them.  I don't see those domains in the top 156 list 
>> (admittedly a quick scan), so I wonder if it is only counting pages that 
>> try to create SAB without any isolation _and_ without the rOT   ?
>
>
> I believe, for privacy reason, websites are only shown after a sufficient 
> feature usage threshold. This metrics do not count directly site that have 
> opted into the rOT. See code location 
> <https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/renderer/bindings/core/v8/use_counter_callback.cc;l=278?q=V8SharedArrayBufferConstructedWithoutIsolation%20-file:out%20&ss=chromium>.
>  
> It counts page using SharedArrayBuffer, without being crossOriginIsolated. 
> Only website that have registered for the reverse OT can do this more or 
> less. So, 0.036% is the amount of page that would break without the rOT. 
> However, the rOT users are probably an order of magnitude larger.
>  
>
>> Credentialless has helped in some cases, but anonymous iframes is what 
>> we're hoping for to resolve the rest of the flows, but that feature seems 
>> to be a bit stuck and unmoving at the moment from what we can tell.
>>
>
> Happy to hear COEP:credentialless helped for simple third party 
> ressources! For iframes, anonymous iframe 
> <https://github.com/WICG/anonymous-iframe> is moving and will be ready 
> soon. We aim for a M106 OT.
>
>

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