LGTM to experiment from M109 to M112.
On 11/30/22 9:01 AM, Yoav Weiss wrote:
Contact emails
yoavwe...@chromium.org
Explainer
https://github.com/WICG/soft-navigations#soft-navigations
<https://bit.ly/soft-navigation>
Specification
Not yet. I want to use the OT's feedback to assess the solution's
viability.
Summary
Exposes the (experimental) soft navigation heuristics
<https://github.com/WICG/soft-navigations#soft-navigations> to web
developers, using both PerformanceObserver and the performance timeline.
Blink component
Blink>PerformanceAPIs
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EPerformanceAPIs>
TAG review
Not yet.
TAG review status
Not yet.
Risks
Interoperability and Compatibility
/Gecko/: No signal for now. Will file once feedback confirms viability.
/WebKit/: No signal for now. Will file once feedback confirms viability.
/Web developers/: Strong
<https://github.com/WICG/proposals/issues/71#issuecomment-1325856231>
support <https://twitter.com/yoavweiss/status/1575191332775026688>!
/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?
Nope!
Goals for experimentation
I'm interested in gaining insights on the quality of the heuristic and
how it compares to current heuristics employed by RUM providers or
driven by framework- or app-specific knowledge. I'm also interested in
knowing if developers find the correlation of various performance
entries to their soft navigation ergonomic, and whether the emitted
FP/FCP/LCP entries work well for them to evaluate the performance of
their soft navigations.
Reason this experiment is being extended
N/A
Ongoing technical constraints
None.
Debuggability
Will this feature be supported on all six Blink platforms
(Windows, Mac, Linux, Chrome OS, Android, and Android WebView)?
No
Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?
Yes
<https://wpt.fyi/results/soft-navigation-heuristics?label=experimental&label=master&aligned&view=subtest>!
Flag name
SoftNavigationHeuristics
Requires code in //chrome?
False
Tracking bug
https://bugs.chromium.org/p/chromium/issues/detail?id=1338390
Estimated milestones
OriginTrial desktop last 112
OriginTrial desktop first 109
OriginTrial Android last 112
OriginTrial Android first 109
OriginTrial webView last 112
OriginTrial webView first 109
Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5144837209194496
Links to previous Intent discussions
Intent to prototype:
https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAL5BFfV3qRFx0i-eGJFSzqE8bnbX8XYJCvXAj0LfvO0icPo_jA%40mail.gmail.com
This intent message was generated by Chrome Platform Status
<https://chromestatus.com/>.
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