Autobahn WebSocket Testsuite Report
Autobahn WebSocket

websock secure server - Case 1.2.8 : Pass - 25 ms @ 2026-01-07T13:37:28.890Z

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: YKjXuS3y2bHzsssnp7D02A==
Sec-WebSocket-Version: 13
HTTP/1.1 101 Switching Protocols
Date: Wed, 07 Jan 2026 13:37:28 GMT
Connection: Upgrade
Upgrade: websocket
Sec-Websocket-Accept: 3NNBxeM7gBq1Qkij7yqEqSqD3jQ=

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: 485454502f312e312031303120537769746368696e672050726f746f636f6c730d0a446174653a205765642c203037204a61
               6e20323032362031333a33373a32 ...
002 TX FRAME : OPCODE=2, FIN=True, RSV=0, PAYLOAD-LEN=65536, MASK=25ca04ca, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=997, SYNC=False
               0xfefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefe
               fefefefefefefefefefefefefefefe ...
003 TX OCTETS: 82ff000000000001000025ca04cadb34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34
               db34fa34db34fa34db34fa34db34 ...
004 FAIL CONNECTION AFTER 10.000000 sec
005 TX OCTETS: 34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db
               34fa34db34fa34db34fa34db34fa ...
006 TX OCTETS: db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34
               fa34db34fa34db34fa34db34fa34 ...
007 TX OCTETS: 34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa
               34db34fa34db34fa34db34fa34db ...
008 TX OCTETS: fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34
               db34fa34db34fa34db34fa34db34 ...
009 TX OCTETS: 34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db
               34fa34db34fa34db34fa34db34fa ...
010 TX OCTETS: db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34
               fa34db34fa34db34fa34db34fa34 ...
011 TX OCTETS: 34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa
               34db34fa34db34fa34db34fa34db ...
012 TX OCTETS: fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34
               db34fa34db34fa34db34fa34db34 ...
013 TX OCTETS: 34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db
               34fa34db34fa34db34fa34db34fa ...
014 TX OCTETS: db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34
               fa34db34fa34db34fa34db34fa34 ...
015 TX OCTETS: 34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa
               34db34fa34db34fa34db34fa34db ...
016 TX OCTETS: fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34
               db34fa34db34fa34db34fa34db34 ...
017 TX OCTETS: 34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db
               34fa34db34fa34db34fa34db34fa ...
018 TX OCTETS: db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34
               fa34db34fa34db34fa34db34fa34 ...
019 TX OCTETS: 34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa
               34db34fa34db34fa34db34fa34db ...
020 TX OCTETS: fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34
               db34fa34db34fa34db34fa34db34 ...
021 TX OCTETS: 34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db
               34fa34db34fa34db34fa34db34fa ...
022 TX OCTETS: db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34
               fa34db34fa34db34fa34db34fa34 ...
023 TX OCTETS: 34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa
               34db34fa34db34fa34db34fa34db ...
024 TX OCTETS: fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34
               db34fa34db34fa34db34fa34db34 ...
025 TX OCTETS: 34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db
               34fa34db34fa34db34fa34db34fa ...
026 TX OCTETS: db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34
               fa34db34fa34db34fa34db34fa34 ...
027 TX OCTETS: 34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa
               34db34fa34db34fa34db34fa34db ...
028 TX OCTETS: fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34
               db34fa34db34fa34db34fa34db34 ...
029 TX OCTETS: 34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db
               34fa34db34fa34db34fa34db34fa ...
030 TX OCTETS: db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34
               fa34db34fa34db34fa34db34fa34 ...
031 TX OCTETS: 34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa
               34db34fa34db34fa34db34fa34db ...
032 TX OCTETS: fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34
               db34fa34db34fa34db34fa34db34 ...
033 TX OCTETS: 34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db
               34fa34db34fa34db34fa34db34fa ...
034 TX OCTETS: db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34
               fa34db34fa34db34fa34db34fa34 ...
035 TX OCTETS: 34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa
               34db34fa34db34fa34db34fa34db ...
036 TX OCTETS: fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34
               db34fa34db34fa34db34fa34db34 ...
037 TX OCTETS: 34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db
               34fa34db34fa34db34fa34db34fa ...
038 TX OCTETS: db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34
               fa34db34fa34db34fa34db34fa34 ...
039 TX OCTETS: 34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa
               34db34fa34db34fa34db34fa34db ...
040 TX OCTETS: fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34
               db34fa34db34fa34db34fa34db34 ...
041 TX OCTETS: 34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db
               34fa34db34fa34db34fa34db34fa ...
042 TX OCTETS: db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34
               fa34db34fa34db34fa34db34fa34 ...
043 TX OCTETS: 34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa
               34db34fa34db34fa34db34fa34db ...
044 TX OCTETS: fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34
               db34fa34db34fa34db34fa34db34 ...
045 TX OCTETS: 34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db
               34fa34db34fa34db34fa34db34fa ...
046 TX OCTETS: db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34
               fa34db34fa34db34fa34db34fa34 ...
047 TX OCTETS: 34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa
               34db34fa34db34fa34db34fa34db ...
048 TX OCTETS: fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34
               db34fa34db34fa34db34fa34db34 ...
049 TX OCTETS: 34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db
               34fa34db34fa34db34fa34db34fa ...
050 TX OCTETS: db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34
               fa34db34fa34db34fa34db34fa34 ...
051 TX OCTETS: 34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa
               34db34fa34db34fa34db34fa34db ...
052 TX OCTETS: fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34
               db34fa34db34fa34db34fa34db34 ...
053 TX OCTETS: 34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db
               34fa34db34fa34db34fa34db34fa ...
054 TX OCTETS: db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34
               fa34db34fa34db34fa34db34fa34 ...
055 TX OCTETS: 34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa
               34db34fa34db34fa34db34fa34db ...
056 TX OCTETS: fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34
               db34fa34db34fa34db34fa34db34 ...
057 TX OCTETS: 34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db
               34fa34db34fa34db34fa34db34fa ...
058 TX OCTETS: db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34
               fa34db34fa34db34fa34db34fa34 ...
059 TX OCTETS: 34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa
               34db34fa34db34fa34db34fa34db ...
060 TX OCTETS: fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34
               db34fa34db34fa34db34fa34db34 ...
061 TX OCTETS: 34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db
               34fa34db34fa34db34fa34db34fa ...
062 TX OCTETS: db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34
               fa34db34fa34db34fa34db34fa34 ...
063 TX OCTETS: 34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa
               34db34fa34db34fa34db34fa34db ...
064 TX OCTETS: fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34
               db34fa34db34fa34db34fa34db34 ...
065 TX OCTETS: 34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db
               34fa34db34fa34db34fa34db34fa ...
066 TX OCTETS: db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34
               fa34db34fa34db34fa34db34fa34 ...
067 TX OCTETS: 34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa
               34db34fa34db34fa34db34fa34db ...
068 TX OCTETS: fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34
               db34fa34db34fa34db34fa34db34 ...
069 TX OCTETS: 34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db34fa34db
               34fa34db34fa34db34fa34db34fa ...
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=3c9061cb, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               0x03e8
077 TX OCTETS: 88823c9061cb3f78
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