Error decoding fragmented frames

[jeanparpaillon]

NodeJS websocket server

var server = require('websocket').server;

var http = require('http');

var app = http.createServer();

app.listen(8080, function() {
    console.log('running on port 8080');
});

var ws = new server({
    httpServer: app,
    autoAcceptConnections: false,
    keepalive: false,
    disableNagleAlgorithm: false
});

ws.on('request', function(req) {
    if (req.httpRequest.url.indexOf('/0/session/') === 0) {
        console.log('new request');
        var connection = req.accept('ws', req.origin);

        connection.on('message', function(message) {

            if (message.type === 'utf8') {
                /* Receive integer, send as may bytes as JSON */
                var bytes = Number(message.utf8Data);

                if (!Number.isNaN(bytes)) {
                    console.log('sending ' + bytes + ' bytes of data');

                    connection.send(new Array(bytes + 1).join('.'));
                }
            }
        });
    }
});

When asked for + tenth kB (to be defined), client crashes with:

** (FunctionClauseError) no function clause matching in :websocket_client.disconnected/3
    (websocket_client 1.4.2) /home/jean/ws_cli_test/deps/websocket_client/src/websocket_client.erl:291: :websocket_client.disconnected(:cast, :connect, {:context, {:websocket_req, :ws, 'localhost', 8080, '/0/session/', 5000, #Reference<0.1445969634.340525062.178319>, 1, #Port<0.10>, {:transport, :gen_tcp, :tcp, :tcp_closed, :tcp_error, [mode: :binary, active: true, packet: 0]}, "zkOLuxAroVzrOKg721ev0Q==", :undefined, 1, :undefined, :undefined, :undefined}, {:transport, :gen_tcp, :tcp, :tcp_closed, :tcp_error, [mode: :binary, active: true, packet: 0]}, [{"Sec-WebSocket-Protocol", "ws"}], {:ws, 'localhost', 8080, '/0/session/'}, {WsCliTest.Socket, %{}}, "", false, 0})
    (stdlib 3.15.2) gen_statem.erl:1194: :gen_statem.loop_state_callback/11
    (stdlib 3.15.2) proc_lib.erl:226: :proc_lib.init_p_do_apply/3
Initial Call: :websocket_client.init/1
Ancestors: [#PID<0.230.0>, #PID<0.229.0>]
Message Queue Length: 0
Messages: []
Links: [#PID<0.230.0>]
Dictionary: []
Trapping Exits: false
Status: :running
Heap Size: 1598
Stack Size: 29
Reductions: 8702