UTF-8 decoding is wrong

[Artiom-M]

When receiving an UTF-8 string with multi-byte characters like "é" "ю" etc. it is decoded byte by byte giving the result as:

é �

Sending doesn't work at all:

SEND
destination:/topic/spr
content-length:4

ùé
<<< PONG

PING
<<< PONG
PING
<<< ERROR
message:Expected null terminator after 4 content bytes

[Artiom-M]

My current workaround is to encode the message in JSON with ensure_ascii=True (I am using python for tests)

[tobiassodergren]

I have gotten the decoding part to work by including functionality from:
http://snipplr.com/view.php?codeview&id=31206

I introduced it in the compiled version of stomp.js, inside this.ws.onmessage. I don't have enough coffee-script skills to do an actual patch.

  this.ws.onmessage = (function(_this) {
    return function(evt) {
      var arr, c, client, data, frame, messageID, onreceive, subscription, unmarshalledData, _i, _len, _ref, _results;
      data = typeof ArrayBuffer !== 'undefined' && evt.data instanceof ArrayBuffer ? (arr = new Uint8Array(evt.data), typeof _this.debug === "function" ? _this.debug("--- got data length: " + arr.length) : void 0, ((function() {
        var _i, _len, _results;
        _results = [];
          for (_i = 0, _len = arr.length; _i < _len; _i++) {

              var byte1 = arr[_i];
              if( byte1 < 0x80 ) {
                  _results.push(String.fromCharCode(byte1));
              } else if( byte1 >= 0xC2 && byte1 < 0xE0 ) {
                  var byte2 = arr[++_i];
                  _results.push(String.fromCharCode(((byte1&0x1F)<<6) + (byte2&0x3F)));
              } else if( byte1 >= 0xE0 && byte1 < 0xF0 ) {
                  var byte2 = arr[++_i];
                  var byte3 = arr[++_i];
                  _results.push(String.fromCharCode(((byte1&0xFF)<<12) + ((byte2&0x3F)<<6) + (byte3&0x3F)));
              } else if( byte1 >= 0xF0 && byte1 < 0xF5) {
                  var byte2 = arr[++_i];
                  var byte3 = arr[++_i];
                  var byte4 = arr[++_i];
                  var codepoint = ((byte1&0x07)<<18) + ((byte2&0x3F)<<12)+ ((byte3&0x3F)<<6) + (byte4&0x3F);
                  codepoint -= 0x10000;
                  _results.push(String.fromCharCode(
                      (codepoint>>10) + 0xD800,
                      (codepoint&0x3FF) + 0xDC00
                  ));
              }
        }
        return _results;
      })()).join('')) : evt.data;