uncaught exception: permission denied to call XmlHttpRequest.open 
September 2nd, 2008, 08:16 AM
| | Member | | Join Date: Aug 2007
Posts: 120
| | |
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
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September 2nd, 2008, 05:12 PM
|  | Moderator | | Join Date: May 2007 Location: Munich, Germany
Posts: 4,102
Provided Answers: 1 | | | re: uncaught exception: permission denied to call XmlHttpRequest.open
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
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September 5th, 2008, 06:56 AM
| | Member | | Join Date: Aug 2007
Posts: 120
| | | re: uncaught exception: permission denied to call XmlHttpRequest.open
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 - var xmlHttp = null;
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if (window.XMLHttpRequest) {
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// If IE7, Mozilla, Safari, and so on: Use native object.
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xmlHttp = new XMLHttpRequest();
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}
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else
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{
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if (window.ActiveXObject) {
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// ...otherwise, use the ActiveX control for IE5.x and IE6.
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xmlHttp = new ActiveXObject('MSXML2.XMLHTTP.3.0');
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}
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}
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Is it correct what i am doing please give me solution.
thanks
Last edited by gits; September 5th, 2008 at 08:24 AM.
Reason: added code tags
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September 5th, 2008, 08:26 AM
|  | Moderator | | Join Date: May 2007 Location: Munich, Germany
Posts: 4,102
Provided Answers: 1 | | | re: uncaught exception: permission denied to call XmlHttpRequest.open
was i correct with the assumption that you want to make cross-domain requests?
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September 5th, 2008, 08:46 AM
|  | Member | | Join Date: Oct 2007 Location: Shanghai
Posts: 102
| | | re: uncaught exception: permission denied to call XmlHttpRequest.open
I quite agree with gits. You probably want to make a cross-domain requests. Could you post more code for detail?
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September 6th, 2008, 07:13 AM
| | Member | | Join Date: Aug 2007
Posts: 120
| | | re: uncaught exception: permission denied to call XmlHttpRequest.open
here with i am sending my full source code - <?php
-
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?>
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<html>
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<head>
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<script type="text/javascript" src="config_js_var.js"></script>
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<script type='text/javascript'>
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var xmlHttp
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function get_username()
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{
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xmlHttp=GetXmlHttpObject()
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if (xmlHttp==null)
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{
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alert ("Browser does not support HTTP Request")
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return
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}
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var url=getldap_username_utility_url;
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xmlHttp.onreadystatechange=getusername;
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xmlHttp.open("GET",url,true)
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xmlHttp.send(null)
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}
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function getusername()
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{
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var username;
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if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
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{
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usernamestring=xmlHttp.responseText
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userarr = usernamestring.split("<!");
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domainusername = userarr[0];
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domainuserarr = domainusername.split("\\");
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username = domainuserarr[1];
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domain = domainuserarr[0];
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var params;
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params = "user="+username;
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window.location=feedbackforum_url+"?user="+username+"&domainname="+domain;
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}
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}
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function GetXmlHttpObject()
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{
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var xmlHttp=null;
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try
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{
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// Firefox, Opera 8.0+, Safari
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xmlHttp=new XMLHttpRequest();
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}
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catch (e)
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{
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//Internet Explorer
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try
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{
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xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
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}
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catch (e)
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{
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xmlHttpn=new ActiveXObject("Microsoft.XMLHTTP");
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}
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}
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return xmlHttp;
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}
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</script>
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</head>
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<body onload='get_username();'>
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</body>
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</html>
Last edited by gits; September 6th, 2008 at 07:52 AM.
Reason: added code tags
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September 6th, 2008, 01:06 PM
|  | Member | | Join Date: Oct 2007 Location: Shanghai
Posts: 102
| | | re: uncaught exception: permission denied to call XmlHttpRequest.open
Hi, would you please tell me the value of "getldap_username_utility_url" ?
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September 6th, 2008, 01:21 PM
|  | Site Moderator | | Join Date: Nov 2006 Location: UK
Posts: 14,526
Provided Answers: 12 | | | re: uncaught exception: permission denied to call XmlHttpRequest.open
You can use a web proxy for cross-domain requests. Another alternative is a dynamic script tag.
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September 6th, 2008, 05:16 PM
|  | Site Moderator | | Join Date: Nov 2006 Location: UK
Posts: 14,526
Provided Answers: 12 | | | re: uncaught exception: permission denied to call XmlHttpRequest.open
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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