uncaught exception: permission denied to call XmlHttpRequest.open

sbettadpur · #1 September 2nd, 2008, 08:16 AM

hello

I am using xmlHttpRequest method in my application, this method is giving problem in the following browsers

1) Internet Explorer 7
2) Mozila Firefox(2.0.0.16)

I got solution for Mozilla issue

let me explain what i did

In the about:config (for this we have to open browser and type in the address bar as about:config, after that in filter place type as signed) of mozilla brower
you need to set 'signed.applets.codebase_principal_support' to true and add the line

'netscape.security.PrivilegeManager.enablePrivileg e("UniversalBrowserRead");

in my script(means above xmlHttpRequest.open)

But I am facing this issue in IE7 there i am getting Permission Denied to open xmlHttpRequest.

Anybody knows solution for this problem

gits · #2 September 2nd, 2008, 05:12 PM

i guess you want to start a 'cross-domain-request'? it is generally a very! bad idea to rely on settings to a browser-config ... unless it is an intranet application. you may probably find this helpful?

kind regards

sbettadpur · #3 September 5th, 2008, 06:56 AM

hello,

Thanks for ur reply, i saw the url what u provided in the message

and i added the following below lines in my code but its still not working

[CODE=javascript]var xmlHttp = null;
if (window.XMLHttpRequest) {
// If IE7, Mozilla, Safari, and so on: Use native object.
xmlHttp = new XMLHttpRequest();
}
else
{
if (window.ActiveXObject) {
// ...otherwise, use the ActiveX control for IE5.x and IE6.
xmlHttp = new ActiveXObject('MSXML2.XMLHTTP.3.0');
}
}
[/code]

Is it correct what i am doing please give me solution.

thanks

gits · #4 September 5th, 2008, 08:26 AM

was i correct with the assumption that you want to make cross-domain requests?

Ferris · #5 September 5th, 2008, 08:46 AM

I quite agree with gits. You probably want to make a cross-domain requests. Could you post more code for detail?

sbettadpur · #6 September 6th, 2008, 07:13 AM

here with i am sending my full source code

[CODE=php]<?php

?>

<html>
<head>
<script type="text/javascript" src="config_js_var.js"></script>
<script type='text/javascript'>

var xmlHttp

function get_username()
{
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
{
alert ("Browser does not support HTTP Request")
return
}
var url=getldap_username_utility_url;
xmlHttp.onreadystatechange=getusername;
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
}
function getusername()
{
var username;
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
{
usernamestring=xmlHttp.responseText

userarr = usernamestring.split("<!");

domainusername = userarr[0];

domainuserarr = domainusername.split("\\");

username = domainuserarr[1];
domain = domainuserarr[0];
var params;

params = "user="+username;

window.location=feedbackforum_url+"?user="+usernam e+"&domainname="+domain;
}
}

function GetXmlHttpObject()
{
var xmlHttp=null;
try
{
// Firefox, Opera 8.0+, Safari
xmlHttp=new XMLHttpRequest();
}
catch (e)
{
//Internet Explorer
try
{
xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
}
catch (e)
{
xmlHttpn=new ActiveXObject("Microsoft.XMLHTTP");
}
}
return xmlHttp;
}

</script>

</head>

<body onload='get_username();'>

</body>
</html>[/code]

Ferris · #7 September 6th, 2008, 01:06 PM

Hi, would you please tell me the value of "getldap_username_utility_url" ?

acoder · #8 September 6th, 2008, 01:21 PM

You can use a web proxy for cross-domain requests. Another alternative is a dynamic script tag.

acoder · #9 September 6th, 2008, 05:16 PM

I'll just point out that dynamic script tags are for JavaScript/JSON only, so may not be useful here. One other alternative is Apache's mod_rewrite, if that's possible.

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