offer answer uses deprecated callback interface

[payload]

palava-client/coffee/remote_peer.coffee

Lines 230 to 234 in 14c0436

	# TODO: what is this?
	#
	# @nodoc
	#
	oaError: (error) =>

There is a "oaError" with a comment "What is this". oaError stands for offer/answer Error and is used as the failureCallback handler in RTCPeerConnections methods createOffer and createAnswer. This is a deprecated interface for these methods.

Task: use instead the promise based interface

From MDN:

In older code and documentation, you may see a callback-based version of this function. This has been deprecated and its use is strongly discouraged. You should update any existing code to use the Promise-based version of createOffer() instead. The parameters for this form of createOffer() are described below, to aid in updating existing code.