problem with ie6

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necro880

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Sep 4, 2012, 5:20:11 PM9/4/12
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i cant subscribe more than 6 channels on ie6, but with firefox or chrome i can get subscribe over 200 channel.

what can i do?

i need this work on ie6.

Thanks

James Coglan

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Sep 5, 2012, 6:03:28 PM9/5/12
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On 4 September 2012 22:20, necro880 <wnsx...@gmail.com> wrote:
i cant subscribe more than 6 channels on ie6, but with firefox or chrome i can get subscribe over 200 channel.

I can't reproduce this. I just ran this code in the browser:

    var client = new Faye.Client('http://10.0.2.2:8000/bayeux'),
        n      = 10;

    while (n--)
      (function(i) {
        client.subscribe('/channels/' + i, function(message) {
          var logs = document.getElementById('logs'),
              item = document.createElement('li');
          
          item.innerHTML = '/channels/' + i + ': ' + message.text;
          logs.appendChild(item);
        });
      })(n);

And it receives all the messages published by this script:

    var faye = require('../../build/node/faye-node'),
        client = new faye.Client('http://localhost:8000/bayeux');

    setInterval(function() {
      var n = Math.floor(Math.random() * 10);
      client.publish('/channels/' + n, {text: 'Hello!'});
    }, 1000);

Can you reproduce this using your Faye server? What code are you trying to run in the browser that fails when running in IE6?
Message has been deleted

necro880

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Sep 6, 2012, 8:43:30 AM9/6/12
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sorry i forgot change on server:

var n = Math.floor(Math.random() * 20);

on client.

n      = 10;




El jueves, 6 de septiembre de 2012 09:40:46 UTC-3, necro880 escribió:
i try your code, dont ahve problem, but when i try with 11 or 20 or more, then fail.

example: server code

var faye = require('faye'),
    http = require('http');

var bayeux = new faye.NodeAdapter({
    mount:    '/bayeux',
    timeout:  45
});

function onRequest(request, response){};
var serverPush = http.createServer(onRequest).listen(25250);
bayeux.attach(serverPush);
var client = bayeux.getClient();


setInterval(function() {
    var n = Math.floor(Math.random() * 10);
    client.publish('/channels/' + n, {text: 'Hello!'});
}, 1000);

/////////////////////////////////////////////////////////////

client server

<html>
  <head>
    <title>Testing Push</title>
    <script type="text/javascript" src="../config/faye-browser.js"></script>
    <script type="text/javascript">
    var client = new Faye.Client('http://192.168.20.77:25250/bayeux'),

        n      = 10;

    while (n--)
    (function(i) {
      client.subscribe('/channels/' + i, function(message) {
        var logs = document.getElementById('logs'),
            item = document.createElement('li');
       
        item.innerHTML = '/channels/' + i + ': ' + message.text;
        logs.appendChild(item);
      });
    })(n);
    </script>
  </head>
  <body>
    <div id="logs"></di>
  </body>
</html>


i was following the trace of /meta/subscribe/ until here....

faye-browser.js

Faye.Transport.JSONP = Faye.extend(Faye.Class(Faye.Transport, {
  request: function(message, timeout) {
    var params       = {message: Faye.toJSON(message)},
        head         = document.getElementsByTagName('head')[0],
        script       = document.createElement('script'),
        callbackName = Faye.Transport.JSONP.getCallbackName(),
        location     = Faye.URI.parse(this._endpoint, params),
        retry        = this.retry(message, timeout),
        self         = this;
   
    Faye.ENV[callbackName] = function(data) {
      cleanUp();
      self.receive(data);
      self.trigger('up');
    };
   
    var timer = Faye.ENV.setTimeout(function() {
      cleanUp();
      retry();
      self.trigger('down');
    }, 1.5 * 1000 * timeout);
   
    var cleanUp = function() {
      if (!Faye.ENV[callbackName]) return false;
      Faye.ENV[callbackName] = undefined;
      try { delete Faye.ENV[callbackName] } catch (e) {}
      Faye.ENV.clearTimeout(timer);
      script.parentNode.removeChild(script);
      return true;
    };
   
    location.params.jsonp = callbackName;
    script.type = 'text/javascript';
    script.src  = location.toURL();
    alert(location.toURL().length);  --> when the string its too long i have problem.
    head.appendChild(script);
  }
}), {
  _cbCount: 0,
 
  getCallbackName: function() {
    this._cbCount += 1;
    return '__jsonp' + this._cbCount + '__';
  },
 
  isUsable: function(endpoint, callback, context) {
    callback.call(context, true);
  }
});

Faye.Transport.register('callback-polling', Faye.Transport.JSONP);


i can see when the string its too long, i have problem with ie6 and ie7.



El miércoles, 5 de septiembre de 2012 19:03:29 UTC-3, James Coglan escribió:
On 4 September 2012 22:20, necro880 <wnsx...@gmail.com> wrote:
i cant subscribe more than 6 channels on ie6, but with firefox or chrome i can get subscribe over 200 channel.

necro880

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Sep 6, 2012, 8:43:58 AM9/6/12
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sorry i forgot change on server:

var n = Math.floor(Math.random() * 20);

on client.

n      = 20;

necro880

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Sep 6, 2012, 8:45:37 AM9/6/12
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i found this: http://support.microsoft.com/kb/208427

Maximum URL length is 2,083 characters in Internet Explorer


James Coglan

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Sep 6, 2012, 10:08:20 AM9/6/12
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On 6 September 2012 13:45, necro880 <wnsx...@gmail.com> wrote:
i found this: http://support.microsoft.com/kb/208427

Right. I should make the JSON-P transport work around this, but in the meantime you can fix your problem by running the subscriptions at timed intervals: set up a few, then use setTimeout(function() { ... }, 10) to set up the next batch, and so on. If you use the same handler function for all the subscriptions, you can pass them in one call:

client.subscribe(['/channels/1', '/channels/2', ...], function() {})

This reminds me, the spec allows multiple subscriptions to be specified in one wire message, but I took this out of Faye because CometD didn't support it last time I checked. I'll give it another go since it will reduce the volume of data in the subscription requests. 

James Coglan

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Sep 8, 2012, 10:22:59 AM9/8/12
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On 6 September 2012 16:08, James Coglan <jco...@gmail.com> wrote:
On 6 September 2012 13:45, necro880 <wnsx...@gmail.com> wrote:
i found this: http://support.microsoft.com/kb/208427

Right. I should make the JSON-P transport work around this, but in the meantime you can fix your problem by running the subscriptions at timed intervals: set up a few, then use setTimeout(function() { ... }, 10) to set up the next batch, and so on. If you use the same handler function for all the subscriptions, you can pass them in one call:

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