Autobahn WebSocket Testsuite Report
Autobahn WebSocket

websock secure server - Case 1.2.8 : Pass - 24 ms @ 2026-05-07T18:09:24.685Z

Case Description

Send binary message message with payload of length 65536. Sent out data in chops of 997 octets.

Case Expectation

Receive echo'ed binary message (with payload as sent). Clean close with normal code.

Case Outcome

Actual events match at least one expected.

Expected:
{'OK': [('message', '0xfefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefe ...', True)]}

Observed:
[('message', '0xfefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefe ...', True)]

Case Closing Behavior

Connection was properly closed (OK)


Opening Handshake

GET /wss HTTP/1.1
User-Agent: AutobahnTestSuite/25.10.1-0.10.9
Host: 127.0.0.1:8889
Upgrade: WebSocket
Connection: Upgrade
Pragma: no-cache
Cache-Control: no-cache
Sec-WebSocket-Key: wefmCxiAM6S7OS9r1MNqVg==
Sec-WebSocket-Version: 13
HTTP/1.1 101 Switching Protocols
Date: Thu, 07 May 2026 18:09:24 GMT
Connection: Upgrade
Upgrade: websocket
Sec-Websocket-Accept: 6Q894QrA9BJCGT91NDX6uvo4WxI=

Closing Behavior

KeyValueDescription
isServerFalseTrue, iff I (the fuzzer) am a server, and the peer is a client.
closedByMeTrueTrue, iff I have initiated closing handshake (that is, did send close first).
failedByMeFalseTrue, iff I have failed the WS connection (i.e. due to protocol error). Failing can be either by initiating closing handshake or brutal drop TCP.
droppedByMeFalseTrue, iff I dropped the TCP connection.
wasCleanTrueTrue, iff full WebSocket closing handshake was performed (close frame sent and received) _and_ the server dropped the TCP (which is its responsibility).
wasNotCleanReasonNoneWhen wasClean == False, the reason what happened.
wasServerConnectionDropTimeoutFalseWhen we are a client, and we expected the server to drop the TCP, but that didn't happen in time, this gets True.
wasOpenHandshakeTimeoutFalseWhen performing the opening handshake, but the peer did not finish in time, this gets True.
wasCloseHandshakeTimeoutFalseWhen we initiated a closing handshake, but the peer did not respond in time, this gets True.
localCloseCode1000The close code I sent in close frame (if any).
localCloseReasonNoneThe close reason I sent in close frame (if any).
remoteCloseCode1000The close code the peer sent me in close frame (if any).
remoteCloseReasonNoneThe close reason the peer sent me in close frame (if any).

Wire Statistics

Octets Received by Chop Size

Chop SizeCountOctets
414
10110
1661166
16384465536
Total765716

Octets Transmitted by Chop Size

Chop SizeCountOctets
818
2451245
7451745
9976564805
Total6865803

Frames Received by Opcode

OpcodeCount
21
81
Total2

Frames Transmitted by Opcode

OpcodeCount
21
81
Total2

Wire Log

000 TX OCTETS: 474554202f77737320485454502f312e310d0a557365722d4167656e743a204175746f6261686e5465737453756974652f32
               352e31302e312d302e31302e390d ...
001 RX OCTETS: 485454502f312e312031303120537769746368696e672050726f746f636f6c730d0a446174653a205468752c203037204d61
               7920323032362031383a30393a32 ...
002 TX FRAME : OPCODE=2, FIN=True, RSV=0, PAYLOAD-LEN=65536, MASK=9cae1e80, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=997, SYNC=False
               0xfefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefe
               fefefefefefefefefefefefefefefe ...
003 TX OCTETS: 82ff00000000000100009cae1e806250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e
               6250e07e6250e07e6250e07e6250 ...
004 FAIL CONNECTION AFTER 10.000000 sec
005 TX OCTETS: 7e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e62
               50e07e6250e07e6250e07e6250e0 ...
006 TX OCTETS: 6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250
               e07e6250e07e6250e07e6250e07e ...
007 TX OCTETS: 50e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e0
               7e6250e07e6250e07e6250e07e62 ...
008 TX OCTETS: e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e
               6250e07e6250e07e6250e07e6250 ...
009 TX OCTETS: 7e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e62
               50e07e6250e07e6250e07e6250e0 ...
010 TX OCTETS: 6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250
               e07e6250e07e6250e07e6250e07e ...
011 TX OCTETS: 50e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e0
               7e6250e07e6250e07e6250e07e62 ...
012 TX OCTETS: e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e
               6250e07e6250e07e6250e07e6250 ...
013 TX OCTETS: 7e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e62
               50e07e6250e07e6250e07e6250e0 ...
014 TX OCTETS: 6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250
               e07e6250e07e6250e07e6250e07e ...
015 TX OCTETS: 50e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e0
               7e6250e07e6250e07e6250e07e62 ...
016 TX OCTETS: e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e
               6250e07e6250e07e6250e07e6250 ...
017 TX OCTETS: 7e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e62
               50e07e6250e07e6250e07e6250e0 ...
018 TX OCTETS: 6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250
               e07e6250e07e6250e07e6250e07e ...
019 TX OCTETS: 50e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e0
               7e6250e07e6250e07e6250e07e62 ...
020 TX OCTETS: e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e
               6250e07e6250e07e6250e07e6250 ...
021 TX OCTETS: 7e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e62
               50e07e6250e07e6250e07e6250e0 ...
022 TX OCTETS: 6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250
               e07e6250e07e6250e07e6250e07e ...
023 TX OCTETS: 50e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e0
               7e6250e07e6250e07e6250e07e62 ...
024 TX OCTETS: e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e
               6250e07e6250e07e6250e07e6250 ...
025 TX OCTETS: 7e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e62
               50e07e6250e07e6250e07e6250e0 ...
026 TX OCTETS: 6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250
               e07e6250e07e6250e07e6250e07e ...
027 TX OCTETS: 50e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e0
               7e6250e07e6250e07e6250e07e62 ...
028 TX OCTETS: e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e
               6250e07e6250e07e6250e07e6250 ...
029 TX OCTETS: 7e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e62
               50e07e6250e07e6250e07e6250e0 ...
030 TX OCTETS: 6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250
               e07e6250e07e6250e07e6250e07e ...
031 TX OCTETS: 50e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e0
               7e6250e07e6250e07e6250e07e62 ...
032 TX OCTETS: e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e
               6250e07e6250e07e6250e07e6250 ...
033 TX OCTETS: 7e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e62
               50e07e6250e07e6250e07e6250e0 ...
034 TX OCTETS: 6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250
               e07e6250e07e6250e07e6250e07e ...
035 TX OCTETS: 50e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e0
               7e6250e07e6250e07e6250e07e62 ...
036 TX OCTETS: e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e
               6250e07e6250e07e6250e07e6250 ...
037 TX OCTETS: 7e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e62
               50e07e6250e07e6250e07e6250e0 ...
038 TX OCTETS: 6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250
               e07e6250e07e6250e07e6250e07e ...
039 TX OCTETS: 50e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e0
               7e6250e07e6250e07e6250e07e62 ...
040 TX OCTETS: e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e
               6250e07e6250e07e6250e07e6250 ...
041 TX OCTETS: 7e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e62
               50e07e6250e07e6250e07e6250e0 ...
042 TX OCTETS: 6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250
               e07e6250e07e6250e07e6250e07e ...
043 TX OCTETS: 50e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e0
               7e6250e07e6250e07e6250e07e62 ...
044 TX OCTETS: e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e
               6250e07e6250e07e6250e07e6250 ...
045 TX OCTETS: 7e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e62
               50e07e6250e07e6250e07e6250e0 ...
046 TX OCTETS: 6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250
               e07e6250e07e6250e07e6250e07e ...
047 TX OCTETS: 50e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e0
               7e6250e07e6250e07e6250e07e62 ...
048 TX OCTETS: e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e
               6250e07e6250e07e6250e07e6250 ...
049 TX OCTETS: 7e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e62
               50e07e6250e07e6250e07e6250e0 ...
050 TX OCTETS: 6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250
               e07e6250e07e6250e07e6250e07e ...
051 TX OCTETS: 50e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e0
               7e6250e07e6250e07e6250e07e62 ...
052 TX OCTETS: e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e
               6250e07e6250e07e6250e07e6250 ...
053 TX OCTETS: 7e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e62
               50e07e6250e07e6250e07e6250e0 ...
054 TX OCTETS: 6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250
               e07e6250e07e6250e07e6250e07e ...
055 TX OCTETS: 50e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e0
               7e6250e07e6250e07e6250e07e62 ...
056 TX OCTETS: e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e
               6250e07e6250e07e6250e07e6250 ...
057 TX OCTETS: 7e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e62
               50e07e6250e07e6250e07e6250e0 ...
058 TX OCTETS: 6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250
               e07e6250e07e6250e07e6250e07e ...
059 TX OCTETS: 50e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e0
               7e6250e07e6250e07e6250e07e62 ...
060 TX OCTETS: e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e
               6250e07e6250e07e6250e07e6250 ...
061 TX OCTETS: 7e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e62
               50e07e6250e07e6250e07e6250e0 ...
062 TX OCTETS: 6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250
               e07e6250e07e6250e07e6250e07e ...
063 TX OCTETS: 50e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e0
               7e6250e07e6250e07e6250e07e62 ...
064 TX OCTETS: e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e
               6250e07e6250e07e6250e07e6250 ...
065 TX OCTETS: 7e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e62
               50e07e6250e07e6250e07e6250e0 ...
066 TX OCTETS: 6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250
               e07e6250e07e6250e07e6250e07e ...
067 TX OCTETS: 50e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e0
               7e6250e07e6250e07e6250e07e62 ...
068 TX OCTETS: e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e
               6250e07e6250e07e6250e07e6250 ...
069 TX OCTETS: 7e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e6250e07e62
               50e07e6250e07e6250e07e6250e0 ...
070 RX OCTETS: 827f0000000000010000fefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefe
               fefefefefefefefefefefefefefe ...
071 RX OCTETS: fefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefe
               fefefefefefefefefefefefefefe ...
072 RX OCTETS: fefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefe
               fefefefefefefefefefefefefefe ...
073 RX OCTETS: fefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefe
               fefefefefefefefefefefefefefe ...
074 RX OCTETS: fefefefefefefefefefe
075 RX FRAME : OPCODE=2, FIN=True, RSV=0, PAYLOAD-LEN=65536, MASKED=False, MASK=None
               0xfefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefe
               fefefefefefefefefefefefefefefe ...
076 TX FRAME : OPCODE=8, FIN=True, RSV=0, PAYLOAD-LEN=2, MASK=4537489b, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               0x03e8
077 TX OCTETS: 88824537489b46df
078 RX OCTETS: 880203e8
079 RX FRAME : OPCODE=8, FIN=True, RSV=0, PAYLOAD-LEN=2, MASKED=False, MASK=None
               0x03e8
080 TCP DROPPED BY PEER