ASP.NET MVC 3.0 jquery unobtrusive ajax Failed on IE 8

Hi All,

I'v notice a strange behavior when working with ASP.NET MVC 3.0 jquery unobtrusive ajax on forms HTML element on IE (internet explorer) 8.

Razor code example for generating ajax call on a form element using unobtrusive ajax: @using (Ajax.BeginForm("MyAction", "MyController",  new AjaxOptions { HttpMethod = "POST" })){

Sometimes (not always) i'm getting a javascript error with the message "Falied" that come from the javascript file jquery.unobtrusive-ajax.js:

The line is:

$("form[data-ajax=true] :submit").live("click", function (evt) {

Well the only solution I can find is to modify jquery.unobtrusive-ajax.js code with the following code:

$("form[data-ajax=true]").find("submit").live("click", function (evt) {

This fix the javascript error and the ajax call works always on IE 8.

Until now I can explain why the error happened only on IE 8 and was not reproduce permanently on each page refresh.

If it happened to you, I would be happy to know if you find other solution to this strange problem.

Rotem