Re: [geolocation-api] errorCallback parameter to getPosition() and watchPosition() is nullable in all major browser engines (#61)

Per https://github.com/heycam/webidl/issues/774#issuecomment-524915557 **nullable optional dictionary** is invalid IDL.

The discussion on that issue seems to imply **nullable optional callback function** is valid IDL?

@bzbarsky is well-versed in WebIDL and can probably advise us on this detail.

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Received on Monday, 23 November 2020 09:26:20 UTC