[jQuery] <h1>length required</h1> response when using .post

[jQuery] <h1>length required</h1> response when using .post


Has anyone else noticed this response? What's going on here?
Below is the code that I use to report javascript errors to me. And,
occasionally, I'll notice this response in Firebug for the post to
the /javascript/emailError.cfm page.
<script type="text/javascript">
            onerror = function(msg,url,l)
            {
             var error="";
                error+="Error: " + msg + "\n";
                error+="URL: " + url + "\n";
                error+="Line: " + l + "\n\n";
                $.post("/javascript/emailError.cfm",{error : error} );
                return true;
            }
        $(function(){
...
...