getResponseHeader is not a function

Question

I need to get a value from another page. But I get this error with the following code. How can I fix it?

    $(document).ready(function() { 
        $(\"[name=\'         


        

Answer 1

Is it a cross-domain call? You may be entering a whole new world of pain? (Cross Domain Resource Sharing GET: 'refused to get unsafe header "etag"' from Response) when you do that.