It looks like when cache hit, http2/6.9.1/3 fails.
$ h2spec -h 127.0.0.1 -p 4443 -k -t -S http2/6.9.1/3
Hypertext Transfer Protocol Version 2 (HTTP/2)
6. Frame Definitions
6.9. WINDOW_UPDATE
6.9.1. The Flow-Control Window
× 3: Sends multiple WINDOW_UPDATE frames increasing the flow control window to above 2^31-1 on a stream -> The endpoint MUST sends a RST_STREAM frame with a FLOW_CONTROL_ERROR code.
Expected: RST_STREAM Frame (Error Code: FLOW_CONTROL_ERROR)
Actual: RST_STREAM Frame (length:4, flags:0x00, stream_id:1)
debug logs
[May 10 13:44:34.818] {0xb0004000} DEBUG: <Http2ClientSession.cc:432 (do_start_frame_read)> (http2_cs) [338] receiving frame header
[May 10 13:44:34.818] {0xb0004000} DEBUG: <Http2ClientSession.cc:442 (do_start_frame_read)> (http2_cs) [338] frame header length=15, type=1, flags=0x4, streamid=1
[May 10 13:44:34.818] {0xb0004000} DEBUG: <Http2ConnectionState.cc:202 (rcv_headers_frame)> (http2_con) [338] [1] Received HEADERS frame
[May 10 13:44:34.818] {0xb0004000} DEBUG: <Http2Stream.cc:269 (change_state)> (http2_stream) [338] [1] Http2StreamState::HTTP2_STREAM_STATE_OPEN
[May 10 13:44:34.818] {0xb0004000} DEBUG: <Http2Stream.cc:576 (update_write_request)> (http2_stream) [338] [1] write_vio.nbytes=893, write_vio.ndone=0, write_vio.write_avail=12007, reader.read_avail=281
[May 10 13:44:34.818] {0xb0004000} DEBUG: <Http2ConnectionState.cc:1426 (send_headers_frame)> (http2_con) [338] [1] Send HEADERS frame
[May 10 13:44:34.818] {0xb0004000} DEBUG: <Http2Stream.cc:576 (update_write_request)> (http2_stream) [338] [1] write_vio.nbytes=893, write_vio.ndone=281, write_vio.write_avail=8192, reader.read_avail=612
[May 10 13:44:34.818] {0xb0004000} DEBUG: <Http2ConnectionState.cc:1358 (send_a_data_frame)> (http2_con) [338] [1] Send a DATA frame - client window con: 64923 stream: 64923 payload: 612
[May 10 13:44:34.818] {0xb0004000} DEBUG: <Http2ConnectionState.cc:1373 (send_a_data_frame)> (http2_con) [338] [1] End of DATA frame
[May 10 13:44:34.818] {0xb0004000} DEBUG: <Http2Stream.cc:269 (change_state)> (http2_stream) [338] [1] Http2StreamState::HTTP2_STREAM_STATE_HALF_CLOSED_LOCAL
[May 10 13:44:34.818] {0xb0004000} DEBUG: <Http2ConnectionState.cc:1406 (send_data_frames)> (http2_con) [338] [1] Shutdown stream
[May 10 13:44:34.818] {0xb0004000} DEBUG: <Http2ConnectionState.cc:1159 (delete_stream)> (http2_con) [338] [1] Delete stream
[May 10 13:44:34.818] {0xb0004000} DEBUG: <Http2ConnectionState.cc:1628 (send_rst_stream_frame)> (http2_con) [338] [1] Send RST_STREAM frame
[May 10 13:44:34.818] {0xb0004000} DEBUG: <Http2Stream.cc:269 (change_state)> (http2_stream) [338] [1] Http2StreamState::HTTP2_STREAM_STATE_CLOSED
[May 10 13:44:34.818] {0xb0004000} DEBUG: <Http2Stream.cc:390 (initiating_close)> (http2_stream) [338] [1] initiating_close
[May 10 13:44:34.818] {0xb0004000} DEBUG: <Http2Stream.cc:418 (initiating_close)> (http2_stream) [338] [1] handle write from destroy (event=103)
[May 10 13:44:34.818] {0xb0004000} DEBUG: <Http2Stream.cc:713 (destroy)> (http2_stream) [338] [1] Destroy stream, sent 612 bytes
[May 10 13:44:34.818] {0xb0004000} DEBUG: <Http2ClientSession.cc:432 (do_start_frame_read)> (http2_cs) [338] receiving frame header
[May 10 13:44:34.818] {0xb0004000} DEBUG: <Http2ClientSession.cc:442 (do_start_frame_read)> (http2_cs) [338] frame header length=4, type=8, flags=0x0, streamid=1
[May 10 13:44:34.818] {0xb0004000} DEBUG: <Http2ClientSession.cc:432 (do_start_frame_read)> (http2_cs) [338] receiving frame header
[May 10 13:44:34.818] {0xb0004000} DEBUG: <Http2ClientSession.cc:442 (do_start_frame_read)> (http2_cs) [338] frame header length=4, type=8, flags=0x0, streamid=1
[May 10 13:44:34.819] {0xb0004000} DEBUG: <Http2ClientSession.cc:258 (do_io_close)> (http2_cs) [338] session closed
[May 10 13:44:34.819] {0xb0004000} DEBUG: <Http2ClientSession.cc:68 (destroy)> (http2_cs) [338] session destroy
[May 10 13:44:34.819] {0xb0004000} DEBUG: <Http2ClientSession.cc:95 (free)> (http2_cs) [338] session free
From debug logs, it looks like ATS send response, send RST_STREAM immediately, and close the stream. Probably, ATS should wait ES from client or inactivity timeout in half-closed (local) state.
It looks like when cache hit, http2/6.9.1/3 fails.
debug logs
From debug logs, it looks like ATS send response, send RST_STREAM immediately, and close the stream. Probably, ATS should wait ES from client or inactivity timeout in
half-closed (local)state.