dictionary RTCDataChannelParameters id is null and other "null if unset"?

[robin-raymond]

id of type unsigned short
The id attribute returns the id for this RTCDataChannel, or null if unset.

... id isn't nullable so that should say it's null if unset.

[robin-raymond]

There are a number of instances of "null if unset" throughout the document.

[aboba]

"null if unset" is used in the following dictionary definitions:

RTCRtpCodecParameters dictionary, clockRate attribute (near line 3326)
RTCDataChannelParameters dictionary, maxPacketLifetime attribute (near line 5084)
RTCDataChannelParameters dictionary, maxRetransmits attribute (near line 5094)
RTCDataChannelParameters dictionary, id attribute (near line 5128)

[robin-raymond]

Good now.