← back to v149 · platform-provided-behaviors
conformance · v149
v149 · platform-provided-behaviors — conformance probe
6 assertions drawn from the spec. Each is a single contract the spec text makes. Pass/fail reflects what this browser executed; blocked means the contract was not run because it needs user mediation, hardware, or another unavailable precondition. Open the page in Chrome stable / canary / Firefox / Safari to compare.
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| id | contract | kind | verdict | detail |
|---|---|---|---|---|
html-submit-button-behavior-exists |
The HTMLSubmitButtonBehavior interface is exposed on the global so custom elements can opt into native submit behavior. spec ↗ | exists | … | |
html-submit-button-behavior-callable |
HTMLSubmitButtonBehavior is a constructable interface. | typeof | … | |
attach-internals-exists |
HTMLElement.prototype.attachInternals exists, the entry point that accepts the new behaviors option. | typeof | … | |
attach-internals-accepts-behaviors-option |
Calling attachInternals with a `behaviors` option in the dictionary does not throw on a form-associated custom element. spec ↗ | script | … | |
element-internals-exists |
ElementInternals is exposed; platform-provided behaviors hang off of this interface. | exists | … | |
custom-elements-define-exists |
customElements.define exists, the precondition for any platform-provided behavior wiring. | typeof | … |