Question

I just loop my Ajax call until the 12030 error goes away. The error is reported as a bug here

Does anyone know if there is a better fix…as this takes up time to loop. I read this was a known issue with IE that it intermittently produces 12030 errors as that Ajax status.

var Ajax = {
    createAjaxObject: function()
    {
        var request;
        try
        {
            request = new XMLHttpRequest();
        }
        catch(error)
        {
            try 
            {
                request = new ActiveXObject("Msxml2.XMLHTTP");
            }
            catch(error)
            {
                try
                {
                    request = new ActiveXObject("Microsoft.XMLHTTP");
                }
                catch(error)
                {
                    request = false;
                }
            }
        }
        return request;
    },

    useAjaxObject: function( path, param, ajax_func, html_div )
    {
        var object = new Ajax.createAjaxObject();
        object.open( "POST", path, true );
        object.setRequestHeader( "Content-type", "application/x-www-form-urlencoded" );
        object.setRequestHeader( "Content-length", param.length );
        object.setRequestHeader( "Connection", "close" );
        object.onreadystatechange = function()
        {
            if( this.readyState === 4 )
            {
                if( this.status === 200 )
                {
                    ajax_func( this.responseText, html_div );
                }
                else
                {
                    Ajax.repeatUseAjaxObject( path, param, ajax_func, html_div );
                    return false;
                }
            }
        };
        object.send( param );
        return true;
    },
    repeatUseAjaxObject: function( path, param, ajax_func, html_div )
    {
        var state = false,
            count = 1;
        while(state === false && count <= 5)
        {
            state = Ajax.useAjaxObject( path, param, ajax_func, html_div );
            if( count !== 1 )
            {
                alert( 'Ajax Object Use Failed ');
            }
        count++;
        }
        return state;
    }

Answer 1

I have this same problem, and I found a solution that works for me as long as the AJAX request is asynchronous.

The solution is to wrap the AJAX call in a setTimeout call with a delay of 0.

This seems to work 100% of the time for me.

I also verified with one of my co-workers that the 12030 error still occurs in Internet Explorer 9, as well.

<rant>So Billy G and company see fit to provide us with the new "Metro" interface, but they can't be bothered to fix their browser that all web programmers must support</rant>