Autobahn WebSocket Testsuite Report
Autobahn WebSocket

websock secure server - Case 1.2.8 : Pass - 28 ms @ 2026-04-11T02:37:26.196Z

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: O20WNAZsmE15x8QGUaY7/w==
Sec-WebSocket-Version: 13
HTTP/1.1 101 Switching Protocols
Date: Sat, 11 Apr 2026 02:37:26 GMT
Upgrade: websocket
Connection: Upgrade
Sec-Websocket-Accept: +t++bnsMAL18dmj+DklozsmQduM=

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: 485454502f312e312031303120537769746368696e672050726f746f636f6c730d0a446174653a205361742c203131204170
               7220323032362030323a33373a32 ...
002 TX FRAME : OPCODE=2, FIN=True, RSV=0, PAYLOAD-LEN=65536, MASK=d6479560, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=997, SYNC=False
               0xfefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefe
               fefefefefefefefefefefefefefefe ...
003 TX OCTETS: 82ff0000000000010000d647956028b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e
               28b96b9e28b96b9e28b96b9e28b9 ...
004 FAIL CONNECTION AFTER 10.000000 sec
005 TX OCTETS: 9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28
               b96b9e28b96b9e28b96b9e28b96b ...
006 TX OCTETS: 28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b9
               6b9e28b96b9e28b96b9e28b96b9e ...
007 TX OCTETS: b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b
               9e28b96b9e28b96b9e28b96b9e28 ...
008 TX OCTETS: 6b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e
               28b96b9e28b96b9e28b96b9e28b9 ...
009 TX OCTETS: 9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28
               b96b9e28b96b9e28b96b9e28b96b ...
010 TX OCTETS: 28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b9
               6b9e28b96b9e28b96b9e28b96b9e ...
011 TX OCTETS: b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b
               9e28b96b9e28b96b9e28b96b9e28 ...
012 TX OCTETS: 6b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e
               28b96b9e28b96b9e28b96b9e28b9 ...
013 TX OCTETS: 9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28
               b96b9e28b96b9e28b96b9e28b96b ...
014 TX OCTETS: 28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b9
               6b9e28b96b9e28b96b9e28b96b9e ...
015 TX OCTETS: b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b
               9e28b96b9e28b96b9e28b96b9e28 ...
016 TX OCTETS: 6b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e
               28b96b9e28b96b9e28b96b9e28b9 ...
017 TX OCTETS: 9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28
               b96b9e28b96b9e28b96b9e28b96b ...
018 TX OCTETS: 28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b9
               6b9e28b96b9e28b96b9e28b96b9e ...
019 TX OCTETS: b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b
               9e28b96b9e28b96b9e28b96b9e28 ...
020 TX OCTETS: 6b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e
               28b96b9e28b96b9e28b96b9e28b9 ...
021 TX OCTETS: 9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28
               b96b9e28b96b9e28b96b9e28b96b ...
022 TX OCTETS: 28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b9
               6b9e28b96b9e28b96b9e28b96b9e ...
023 TX OCTETS: b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b
               9e28b96b9e28b96b9e28b96b9e28 ...
024 TX OCTETS: 6b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e
               28b96b9e28b96b9e28b96b9e28b9 ...
025 TX OCTETS: 9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28
               b96b9e28b96b9e28b96b9e28b96b ...
026 TX OCTETS: 28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b9
               6b9e28b96b9e28b96b9e28b96b9e ...
027 TX OCTETS: b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b
               9e28b96b9e28b96b9e28b96b9e28 ...
028 TX OCTETS: 6b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e
               28b96b9e28b96b9e28b96b9e28b9 ...
029 TX OCTETS: 9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28
               b96b9e28b96b9e28b96b9e28b96b ...
030 TX OCTETS: 28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b9
               6b9e28b96b9e28b96b9e28b96b9e ...
031 TX OCTETS: b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b
               9e28b96b9e28b96b9e28b96b9e28 ...
032 TX OCTETS: 6b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e
               28b96b9e28b96b9e28b96b9e28b9 ...
033 TX OCTETS: 9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28
               b96b9e28b96b9e28b96b9e28b96b ...
034 TX OCTETS: 28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b9
               6b9e28b96b9e28b96b9e28b96b9e ...
035 TX OCTETS: b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b
               9e28b96b9e28b96b9e28b96b9e28 ...
036 TX OCTETS: 6b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e
               28b96b9e28b96b9e28b96b9e28b9 ...
037 TX OCTETS: 9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28
               b96b9e28b96b9e28b96b9e28b96b ...
038 TX OCTETS: 28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b9
               6b9e28b96b9e28b96b9e28b96b9e ...
039 TX OCTETS: b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b
               9e28b96b9e28b96b9e28b96b9e28 ...
040 TX OCTETS: 6b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e
               28b96b9e28b96b9e28b96b9e28b9 ...
041 TX OCTETS: 9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28
               b96b9e28b96b9e28b96b9e28b96b ...
042 TX OCTETS: 28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b9
               6b9e28b96b9e28b96b9e28b96b9e ...
043 TX OCTETS: b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b
               9e28b96b9e28b96b9e28b96b9e28 ...
044 TX OCTETS: 6b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e
               28b96b9e28b96b9e28b96b9e28b9 ...
045 TX OCTETS: 9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28
               b96b9e28b96b9e28b96b9e28b96b ...
046 TX OCTETS: 28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b9
               6b9e28b96b9e28b96b9e28b96b9e ...
047 TX OCTETS: b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b
               9e28b96b9e28b96b9e28b96b9e28 ...
048 TX OCTETS: 6b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e
               28b96b9e28b96b9e28b96b9e28b9 ...
049 TX OCTETS: 9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28
               b96b9e28b96b9e28b96b9e28b96b ...
050 TX OCTETS: 28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b9
               6b9e28b96b9e28b96b9e28b96b9e ...
051 TX OCTETS: b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b
               9e28b96b9e28b96b9e28b96b9e28 ...
052 TX OCTETS: 6b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e
               28b96b9e28b96b9e28b96b9e28b9 ...
053 TX OCTETS: 9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28
               b96b9e28b96b9e28b96b9e28b96b ...
054 TX OCTETS: 28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b9
               6b9e28b96b9e28b96b9e28b96b9e ...
055 TX OCTETS: b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b
               9e28b96b9e28b96b9e28b96b9e28 ...
056 TX OCTETS: 6b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e
               28b96b9e28b96b9e28b96b9e28b9 ...
057 TX OCTETS: 9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28
               b96b9e28b96b9e28b96b9e28b96b ...
058 TX OCTETS: 28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b9
               6b9e28b96b9e28b96b9e28b96b9e ...
059 TX OCTETS: b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b
               9e28b96b9e28b96b9e28b96b9e28 ...
060 TX OCTETS: 6b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e
               28b96b9e28b96b9e28b96b9e28b9 ...
061 TX OCTETS: 9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28
               b96b9e28b96b9e28b96b9e28b96b ...
062 TX OCTETS: 28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b9
               6b9e28b96b9e28b96b9e28b96b9e ...
063 TX OCTETS: b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b
               9e28b96b9e28b96b9e28b96b9e28 ...
064 TX OCTETS: 6b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e
               28b96b9e28b96b9e28b96b9e28b9 ...
065 TX OCTETS: 9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28
               b96b9e28b96b9e28b96b9e28b96b ...
066 TX OCTETS: 28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b9
               6b9e28b96b9e28b96b9e28b96b9e ...
067 TX OCTETS: b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b
               9e28b96b9e28b96b9e28b96b9e28 ...
068 TX OCTETS: 6b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e
               28b96b9e28b96b9e28b96b9e28b9 ...
069 TX OCTETS: 9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28b96b9e28
               b96b9e28b96b9e28b96b9e28b96b ...
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=b2fd1143, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               0x03e8
077 TX OCTETS: 8882b2fd1143b115
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