Ready for Trial: HTMLScriptElement.supports(type) method
Tsuyoshi Horo
Contact emails
Explainer
https://github.com/horo-t/explainers/blob/main/script_element_supports.md
Specification
https://html.spec.whatwg.org/multipage/scripting.html#dom-script-supports
Summary
Provides a unified way to detect new features that use script elements.
Blink component
TAG review
https://github.com/w3ctag/design-reviews/issues/674
TAG review status
Pending
Risks
Interoperability and Compatibility
This method provides a synchronous way of feature detections. But for unsupported browsers, developers need to use an asynchronous way as discussed at https://github.com/WICG/import-maps/issues/171.
Gecko: Worth prototyping (https://github.com/mozilla/standards-positions/issues/576)
WebKit: No signal (https://lists.webkit.org/pipermail/webkit-dev/2021-September/031979.html)
Web developers: Positive The developer feedback on the spec issue (https://github.com/whatwg/html/issues/6472) was positive.
Ergonomics
No known ergonomics risks.
Activation
No known activation risks. This method is easy to use.
Security
No known security risks.
Ongoing technical constraints
None.
Debuggability
Developers can call this method from DevTools's console.
Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, Chrome OS, Android, and Android WebView)?
Yes
Is this feature fully tested by web-platform-tests?
Yes
DevTrial instructions
https://github.com/horo-t/explainers/blob/main/script_element_supports_how_to.md
Flag name
ScriptElementSupports
Requires code in //chrome?
False
Tracking bug
https://bugs.chromium.org/p/chromium/issues/detail?id=1245528
Estimated milestones
DevTrial on desktop 95
DevTrial on Android 95
DevTrial on Webview 95
Link to entry on the Chrome Platform Status
https://www.chromestatus.com/feature/5712146835963904
Links to previous Intent discussions
Intent to prototype: https://groups.google.com/a/chromium.org/g/blink-dev/c/evk2qgsekYk/m/WtdE_XplBQAJ
This intent message was generated by Chrome Platform Status.