http2/http2-spec — pull request #652 by martinthomson (2014-11-23 21:21:11+00:00)
Title: Options for SETTINGS_MAX_CONCURRENT_STREAMS violations

Rather than just PROTOCOL_ERROR, allow REFUSED_STREAM.

REFUSED_STREAM is a more lenient error. It allows clients to retry requests. Servers might also set the GOAWAY stream number to a lower value if they upgraded.

Closes #649.