Fail with InvalidStateError when the document is not fully active at call time - #557
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An API invoked when its associated document is not fully active should fail immediately with InvalidStateError, distinct from the NotAllowedError used when the document lacks user attention. Add the fully-active check to the get() and create() algorithms ahead of the existing check.
timcappalli
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Jul 20, 2026
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Per the TAG design principle on non-fully-active documents (§2.13), an API invoked when its associated document is not fully active should fail immediately with an
InvalidStateError, distinct from theNotAllowedErrorused when the document lacks user attention.This adds that fully-active check to the
get()andcreate()algorithms ahead of the existing check, leaving the focus/visibility rejection asNotAllowedError.Preview | Diff