XMLHttpRequest的open（）在Chrome中失败

Question

I am trying to patch up a bit of AJAX that doesn't work in Chrome. It's not my script and I'd rather not convert the whole thing to jQuery.

xmlhttp.open("GET", query, true);
xmlhttp.onreadystatechange = function () {
    if (xmlhttp.readyState == 4) {
        console.log(xmlhttp.responseText);
    }
}
xmlhttp.send();

This actually outputs something in the log while using Internet Explorer, but when in (Ch)rome I get an empty string, since the JS debugger tells me that GET failed. The target URL is correct since it works in IE, but it is some kind of ASP.NET script which inner workings I'm not very familiar with (I do the HTML, CSS and JavaScript around here).

Why could it be that IE is allowed to retrieve the information from the target, but not Chrome? When using Chrome xmlhttp is a XMLHttpRequest and IE gets some kind of ActiveXObject .

Edit. I found some possible solutions here . Response.Close() , no async or specified/empty data type. It's jQuery though.

Edit #2. What Chrome is saying about my headers.

Answer 1

Can you view the url by typing it into the address bar in Chrome? There could just be something about your browser config that prevents Chrome from seeing the server.

Another possibility is that you are being scuppered by the Same Origin Policy - is the url you are accessing on the same domain as the page?

Answer 2

Okay, so I've solved it. Chrome apparently dislikes having Response.Close() at the end of the requested page. Changing to Response.End() fixed it. Thank you for your help!

I also replaced that JavaScript with one line of jQuery.