Sending data channel messages > maxMessageSize

[lgrahl]

The maxMessageSize attribute of the RTCSctpTransport interface describes maxMessageSize as

The maximum size of data that can be passed to RTCDataChannel 's send() method.

1. The RTCDataChannel.send method doesn't mention maxMessageSize in its description. This probably needs updating. (resolved by Throw error if data channel's buffer is filled, rather than closing. #1209)
2. We need to know exactly what an implementation is supposed to do in case a message is larger than maxMessageSize. I'm suggesting to throw an exception. (resolved by Throw error if data channel's buffer is filled, rather than closing. #1209)
3. The spec should make clear that maxMessageSize refers to the maximum message size the other peer is able to receive.

Link to the corresponding SDP spec section

[lgrahl]

2. should probably depend on the outcome of Section 6.2: when data cannot be sent #1287. I'd appreciate having explicit fails in the API rather than implicit fails by closing the data channel.

[lgrahl]

1 and 2 have been resolved by #1209. Only 3 is left. 👍