On Thursday, November 30, 2023 at 3:34:53 AM UTC+1 Jeremy Roman wrote:

Contact emailsjbro...@chromium.org

ExplainerNone

Specificationhttps://urlpattern.spec.whatwg.org/#dom-urlpattern-
hasregexpgroups

Summary

Allows easy inspection of whether a URLPattern uses one or more ECMAScript 
regular expression groups, and therefore may not be suitable for use in 
cases where an ECMAScript engine is not available (such as some upcoming 
planned APIs). Strictly speaking this reflects back something developers 
could know anyway from inspecting the pattern, but having easy access to 
the UA's implementation of this check makes that more straightforward.


Would the answer here be different between different implementations?
 



Blink componentBlink>URLPattern 
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EURLPattern>

TAG reviewNone

TAG review statusNot applicable

Risks


Interoperability and Compatibility

Interoperability risk is low. The feature is simple, has a small API 
surface area, and is easy to implement. It could be polyfilled if other 
browser vendors implemented URLPattern but not this feature, though that 
outcome does not seem likely.


*Gecko*: No signal (https://mozilla.github.io/standards-positions/#
urlpattern) This addition is too trivial to request a separate position, 
but Mozilla is positive on URLPattern generally.

*WebKit*: No signal (https://webkit.org/standards-positions/#position-61) 
This addition is too trivial to request a separate position, but WebKit is 
positive on URLPattern generally.

*Web developers*: No signals No significant signals, but this feature is 
trivial

*Other signals*:

Ergonomics

No significant concerns anticipated


Activation

No; in fact this property is added specifically to make activation of 
features which can only accept patterns with no regexp groups easier.


Security

No security risks have been identified.


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?

None


Debuggability

Standard developer tools (e.g., the JavaScript console) are likely to be 
sufficient. If URL patterns become extremely popular one could imagine 
tools particular to them, but those could be developed independently of 
this ship decision.


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>
?Yes

https://wpt.fyi/results/urlpattern?label=master&label=
experimental&aligned&q=urlpattern-hasregexpgroups


Flag name on chrome://flagsNone

Finch feature nameURLPatternHasRegExpGroups

Requires code in //chrome?False

Tracking bughttps://bugs.chromium.org/p/chromium/issues/detail?id=1504650

Availability expectationDependent on implementation of URL Pattern API in 
non-Chromium browsers.

Estimated milestonesShipping on desktop122Shipping on Android122Shipping on 
WebView122
If approvals arrive in time for 121 branch, I'll enable this in 121, but 
I'm currently assuming not.

Anticipated spec changes

Open questions about a feature may be a source of future web compat or 
interop issues. Please list open issues (e.g. links to known github issues 
in the project for the feature specification) whose resolution may 
introduce web compat/interop risk (e.g., changing to naming or structure of 
the API in a non-backward-compatible way).
None

Link to entry on the Chrome Platform Statushttps://chromestatus.com/
feature/4761338127843328

This intent message was generated by Chrome Platform Status 
<https://chromestatus.com/>.

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