This is pretty darn useful for developing / testing H2: https://github.com/bradfitz/http2/tree/master/h2i <https://github.com/bradfitz/http2/tree/master/h2i>
Install it with e.g. go get github.com/bradfitz/http2/h2i <http://github.com/bradfitz/http2/h2i> Cheers, — leif Example: odin (17:21) 948/1 $ ~/gocode/bin/h2i docs.trafficserver.apache.org Connecting to docs.trafficserver.apache.org:443 ... Connected to 104.239.143.16:443 Negotiated protocol "h2" [FrameHeader SETTINGS len=36] [HEADER_TABLE_SIZE = 4096] [ENABLE_PUSH = 0] [MAX_CONCURRENT_STREAMS = 100] [INITIAL_WINDOW_SIZE = 1048576] [MAX_FRAME_SIZE = 16384] [MAX_HEADER_LIST_SIZE = 4294967295] [FrameHeader WINDOW_UPDATE len=4] Window-Increment = 983041 h2i> headers (as HTTP/1.1)> GET /en/latest/ HTTP/1.1 (as HTTP/1.1)> Host: docs.trafficserver.apache.org (as HTTP/1.1)> Opening Stream-ID 1: :authority = docs.trafficserver.apache.org :method = GET :path = /en/latest/ :scheme = https [FrameHeader HEADERS flags=END_HEADERS stream=1 len=388] :status = "200" (SENSITIVE) :status = "200" server = "ATS/6.0.0" date = "Thu, 30 Jul 2015 23:21:27 GMT" content-type = "text/html" content-length = "188027" last-modified = "Thu, 30 Jul 2015 20:32:08 GMT" vary = "Accept-Encoding" etag = "\"55ba89c8-2de7b\"" x-served = "Nginx" x-subdomain-tryfiles = "True" x-deity = "web03" accept-ranges = "bytes" age = "21" strict-transport-security = "max-age=86400" via = "https/1.1 ATS (ApacheTrafficServer/6.0.0 [cHs f ])" [FrameHeader DATA stream=1 len=8183]