Exception when assigning value to IXMLHttpRequest object in IE7 and IE8

Question

Hi,

I didn't write the following code and I am not a Javascript expert. So please excuse me if it seems to you a trivial bug. However here is the code:

jQuery.ajax({
    type: barobj.method,
    url: handler,
    beforeSend: function (request) {
     request.vote_id = vid;
            ...
    },
    complete: function (request, textStatus){
           jQuery('#actor').filter("[title='"+request.vote_id+"']")
           ...
    },

It is running fine in FF, Chrome, Safari but not (surprise?) in IE7 & IE8.

The exception is Error: Object doesn't support this property or method at line request.voteid = vid After some debugging, I found out that in FF, request has type XMLHttpRequest whereas in IE 7 & 8, it has type IXMMHttpRequest

So what are the reasons of the exception? And how can I solve it in a way that I can get back the vote_id value in the onComplete event?

Thank you very much,

Fabien.

Answer 1

Javascript supports closures, so your complete function should be able to access any variables in scope for the calling code. You don't need to explicitly preserve and pass the vid value to it.

jQuery.ajax({
   type: barobj.method,
   url: handler,
   beforeSend: function (request) { },
   complete: function (request, textStatus){
          jQuery('#actor').filter("[title='"+ vid +"']")
          ...
   },