**
*Hi there,*
*
We would like to extend the User-Agent Reduction OT again, from M104 to
M106 (inclusive). The original extension expired on July 26th. We’ve
heard from several partners that they would like to have more time to
test the fully reduced UA string ahead of Phase 5 and Phase 6 rollouts.
Original I2E
https://groups.google.com/a/chromium.org/g/blink-dev/c/R0xKm1B7qoQ/
<https://groups.google.com/a/chromium.org/g/blink-dev/c/R0xKm1B7qoQ/>
First
I2EEhttps://groups.google.com/a/chromium.org/g/blink-dev/c/6x6WH2Odzfo/m/FkDjee5cHQAJ
<https://groups.google.com/a/chromium.org/g/blink-dev/c/6x6WH2Odzfo/m/FkDjee5cHQAJ>
Experiment Timeline
M103-M106 inclusive
Reason this experiment is being extended
Like the previous extension, we believe the risks for burn-in don't
apply, because this OT just enables what we are planning to ship as
default behavior in the future (and the OT stopped working last week).
We still have not received negative feedback or reports of breaking from
OT participants, and are encouraged by that fact.
Here’s the relevant info required for OT extensions beyond 6 milestones:
Draft spec:
*
https://compat.spec.whatwg.org/#ua-string-chrome
<https://compat.spec.whatwg.org/#ua-string-chrome>
*
We’ve made solid progress against the open UA string issues, and
have documented the recent landing of “Phase 4” in Chromium. We plan
to continue improving things here.
TAG review:
*
https://github.com/w3ctag/design-reviews/issues/640
<https://github.com/w3ctag/design-reviews/issues/640>- closed as
“Satisfied with concerns”
bit.ly/blink-signals requests
*
Gecko: Shipped/Shipping. Firefox has frozen (or capped) much of
their UA string already.
*
WebKit: Shipped/Shipping. Safari has already frozen everything in
their UA string except for version number info.
*
Web developers: Mixed signals. Reactions have ranged from positive
to indifferent to negative, from various channels.
WPT tests
*
None yet, since UAs have flexibility to diverge here. With more
alignment, this may make sense in the future.
Thanks,Mike
*
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