jQuery.ajax type: Post to an ashx file not being initiated in IE. works fine in FF, Chrome, and Safari

Question

this is my first question to the stack.

Code below:

$.ajax({
    type: "Post",
        url: "http://[ ... ]loguserdata.ashx?" + dataString,
        data: "",
        cache: "false",
        contentType: "text/plain",
        success: function(msg){
            //alert( "Data Saved: " + msg );
        }
});

by works fine in FF, etc. I mean the ashx file is called and info is logged. I can see the ajax call in fiddler, firebug and chrome's equivalent.

but there doesn't seem to be jackchit happening in IE9 or in IE compatibility mode.

I can get several versions of the code above to work in the other browsers. Including a $('#result').load( ...

but NOTHING works in IE

btw, works fine locally in IE.

oh, and I don't give a diddly poo about any return value.

and it's not a cache issue. I have a date=getTime() tacked onto the end of the querystring.

querystring (dataString) looks something like fname=john&lname=doedy

EDIT: I have solved this issue. I will post a thorough answer tomorrow when I have time.

check whether you the code is called in your event in IE by putting some alert before ajax call. May be something wrong with some other JQuery — Jayantha Lal Sirisena, Oct 13 '11 at 03:58
Consider using an HTTP inspector (e.g. [Charles](http://www.charlesproxy.com/)) to look at what's really going back and forth. Look also for conflicting scripts scrambling things in IE. — N Rohler, Oct 13 '11 at 03:58
perhaps I should add that creating a direct link via to the file i.e. href="blah.ashx?fname=john" works fine in all browsers. — mtntrailrunner, Oct 13 '11 at 04:12
Jayantha Alert works fine just before the $.ajax call in all browsers — mtntrailrunner, Oct 13 '11 at 04:16
I have solved this issue. I will post a thorough answer tomorrow when I have time. — mtntrailrunner, Oct 13 '11 at 19:26

score 1 · Accepted Answer · edited May 23 '17 at 11:55

Long story truncated: You can't do a XMLHttpRequest crossdomain. Use jQuery's getJSON method with the querystring parameter &callback=? added to the url. This I believe converts the datatype to JSONP.

 var url = 'http://handlers.flowauto.com/eprice/loguserdata.ashx?fname=jim&callback=?';
        $.getJSON(url, function(data) {
            // do some stuff
        });

Here are a few links that helped me solve this.

XMLHttpRequest cannot load an URL with jQuery

http://api.jquery.com/jQuery.getJSON/ see excerpt below

JSONP If the URL includes the string "callback=?" (or similar, as defined by the server-side API), the request is treated as JSONP instead. See the discussion of the jsonp data type in $.ajax() for more details.

http://api.jquery.com/jQuery.ajax/ see excerpt below

Additional Notes: Due to browser security restrictions, most "Ajax" requests are subject to the same origin policy; the request can not successfully retrieve data from a different domain, subdomain, or protocol. Script and JSONP requests are not subject to the same origin policy restrictions.

Nettogrof · Answer 2 · 2011-10-13T14:50:12.277

0

Check your IE security, since it's work locally. I guess that files on the locahost have more privileges.

Edit:

IE9 prevent doing cross-domain ajax call, Opera browser too. For IE9 you can read this article, for a workaround. It suggest to use XDR (XDomainRequest) instead of the usual XMLHttpRequest.

edited Oct 13 '11 at 14:50

answered Oct 13 '11 at 04:03

Nettogrof

2,116
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this will be added to a public website. asking users to change their settings really isn't an option. – mtntrailrunner Oct 13 '11 at 04:17
I edited my answer according to your comments (not on the same domain) – Nettogrof Oct 13 '11 at 14:51

rick schott · Answer 3 · 2011-10-13T12:55:18.853

0

Try this since you aren't sending POST data:

$.ajax({
    type: "GET",
        url: "http://[ ... ]loguserdata.ashx?" + dataString,        
        cache: "false",
        contentType: "text/plain",
        success: function(msg){
            //alert( "Data Saved: " + msg );
        }
});

edited Oct 13 '11 at 12:55

answered Oct 13 '11 at 12:47

rick schott

21,012
5
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Rick, this still only works in Chrome and FF, but not in IE. On a side note I just changed from an ashx file to an aspx file. Same thing. Works in Chrome and FF, but not IE – mtntrailrunner Oct 13 '11 at 14:27

jQuery.ajax type: Post to an ashx file not being initiated in IE. works fine in FF, Chrome, and Safari

3 Answers3