getViewport with an invalid view throws an error #771
Merged
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/fixes #769 (sort of).
The previous logic to return
null
in situations where the passed viewwas from a different session was not consistent with the error behavior
elsewhere. As a specific example, passing spaces from one session to an
XRFrame from a different session throws an
InvalidStateError
. As such,throwing the same error here for the same type of validation makes the
spec more internally consistent.