Re: [Htmlunit-user] (no subject)

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Dear Sling,

I am not able to reproduce. The below case succeeds by HtmlUnit with FF simulation. Are you using latest 2.4 version?

Also, I believe HtmlUnit incorrectly doesn't handle "XMLHttpRequest" as IE7 does, but this is a different issue than yours.

I guess the error happens during posting to the second URL, because JS error happens there, can you investigate the second page or post its html/js code?

<html>
  <head>
    <script>
    function test() {
      ajax(['para1', 'para2']);
    }

  function ajax(parArr, callback)        {
    var http = new XMLHttpRequest();
    var params = "";
    for (var i=0; i<(parArr.length-1); i++) {
                params = params + parArr[i]+"&";
        }
    params = params + parArr[parArr.length-1];
    http.open("POST", "hello2.html", true);
    http.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
    http.setRequestHeader("Content-length", params.length);
    http.setRequestHeader("Connection", "close");
    http.onreadystatechange = function() {//Call a function when the state changes.
      if(http.readyState == 4 && http.status == 200) {
        this.callbackFunction(http.responseText);
      }
    }
    this.callbackFunction = callback || function () { alert("Missing callback function!")};
    http.send(params);
   }
    </script>
  </head>
  <body>
    <input id='myButton' type=button value='ana hena' onclick='test()'><br>
  </body>
</html>

________________________________
From: "sli...@re..." <sli...@re...>
To: htm...@li...
Sent: Sunday, February 8, 2009 11:17:43 PM
Subject: [Htmlunit-user] (no subject)

Hi

I have just started using HtmlUnit and have found it excellent so far. I
have come across a problem that I hope someone might be able to help me
out with. I searched the archives and the web and have not had any luck.

The actual error may be from the rhino libraries but I thought I would try
here first in case it was something I was doing wrong with HtmlUnit.

The stack trace is as follows (the code that generates it is down further)
Exception in thread "HtmlUnit Managed Thread #6 for WebWindow :
XMLHttpRequest.send" org.mozilla.javascript.EcmaError: TypeError: Cannot
find default value for object. (script in http://webhost/Reporter/ from
(13, 32) to (106, 10)#38)
        at
org.mozilla.javascript.ScriptRuntime.constructError(ScriptRuntime.java:3654)
        at
org.mozilla.javascript.ScriptRuntime.constructError(ScriptRuntime.java:3632)
        at
org.mozilla.javascript.ScriptRuntime.typeError(ScriptRuntime.java:3660)
        at
org.mozilla.javascript.ScriptRuntime.typeError1(ScriptRuntime.java:3672)
        at
org.mozilla.javascript.ScriptableObject.getDefaultValue(ScriptableObject.java:780)
        at
org.mozilla.javascript.ScriptableObject.getDefaultValue(ScriptableObject.java:699)
        at
org.mozilla.javascript.ScriptRuntime.toString(ScriptRuntime.java:724)
        at
org.mozilla.javascript.ScriptRuntime.notFunctionError(ScriptRuntime.java:3741)
        at
org.mozilla.javascript.ScriptRuntime.getPropFunctionAndThisHelper(ScriptRuntime.java:2247)
        at
org.mozilla.javascript.ScriptRuntime.getPropFunctionAndThis(ScriptRuntime.java:2214)
        at
org.mozilla.javascript.Interpreter.interpretLoop(Interpreter.java:3143)
        at script(script in http://webhost/Reporter/ from (13, 32) to
(106, 10):38)
        at
org.mozilla.javascript.Interpreter.interpret(Interpreter.java:2487)
        at
org.mozilla.javascript.InterpretedFunction.call(InterpretedFunction.java:164)
        at
org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:398)
        at
com.gargoylesoftware.htmlunit.javascript.HtmlUnitContextFactory.doTopCall(HtmlUnitContextFactory.java:192)
        at
org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3065)
        at
org.mozilla.javascript.InterpretedFunction.call(InterpretedFunction.java:162)
        at
com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.callFunction(JavaScriptEngine.java:472)
        at
com.gargoylesoftware.htmlunit.javascript.host.XMLHttpRequest.setState(XMLHttpRequest.java:142)
        at
com.gargoylesoftware.htmlunit.javascript.host.XMLHttpRequest.doSend(XMLHttpRequest.java:413)
        at
com.gargoylesoftware.htmlunit.javascript.host.XMLHttpRequest.access$000(XMLHttpRequest.java:54)
        at
com.gargoylesoftware.htmlunit.javascript.host.XMLHttpRequest$1.run(XMLHttpRequest.java:361)
        at org.mozilla.javascript.Context.call(Context.java:515)
        at
org.mozilla.javascript.ContextFactory.call(ContextFactory.java:507)
        at
com.gargoylesoftware.htmlunit.javascript.host.XMLHttpRequest$2.run(XMLHttpRequest.java:367)
        at java.lang.Thread.run(Unknown Source)
        at
com.gargoylesoftware.htmlunit.ThreadManager$1.run(ThreadManager.java:116)

The javascript on the page that triggers the error is as follows

Obviously parArr is an array of parameters and callback is the name of the
function that will be called when the ajax request returns.
createXMLHttpRequest() returns a browser compatible Ajax object which in
this case should be XMLHttpRequest.

function ajax(parArr, callback)        {
    var http = createXMLHttpRequest();
    var params = "";
    for (var i=0; i<(parArr.length-1); i++) {
                params = params + parArr[i]+"&";
        }
    params = params + parArr[parArr.length-1];
    http.open("POST", "/Reporter/", true);
    http.setRequestHeader("Content-type",
"application/x-www-form-urlencoded");
    http.setRequestHeader("Content-length", params.length);
    http.setRequestHeader("Connection", "close");
    http.onreadystatechange = function() {//Call a function when the state
changes.
      if(http.readyState == 4 && http.status == 200) {
        this.callbackFunction(http.responseText);
      }
    }
    this.callbackFunction = callback || function () { alert("Missing
callback function!")};
    http.send(params);
}

>From what I can determine the ampersand in the parameters is causing the
problem, when I modify the request to pass only one parameter (e.g. no
ampersand) it is successful.

Any help or hints would be most appreciated. I hope I have provided enough
information.

Thanks

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