Issue with Secure Web Sockets

[rlsutton1]

When initiating a call there is a sizable delay (up to 15 seconds).

I suspect this is a bug in the Asterisk Secure Web Sockets (WSS) handling, but if someone not using asterisk could test and check this issue with WSS would be appreciated so I can eliminate Dart as the possible source.

[cloudwebrtc]

@rlsutton1 We have already ported the main functions, we can perform interactive verification of common open-source servers, if the problems you encounter still exist, I think I can help solve them together.

[rlsutton1]

I have raised an issue with asterisk, so I'll close this issue until I hear back from them.