Resolved AJAX POST Problem

[binaryWeapon]

I wrote up a very simple function to do AJAX POSTs and GETs. GETs work, but POSTs don't, for some reason. The function is this:

AJAX=function(options){
	var request;
	try{
		// Opera 8.0+, Firefox, Safari
		request = new XMLHttpRequest();
	} catch (e){
		// Internet Explorer Browsers
		try{
			request = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				request = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// Something went wrong
				alert("Your browser doesn't support AJAX.");
				return false;
			}
		}
	}
	// Create a function that will receive data sent from the server
  request.onreadystatechange = function(){
  	if(request.readyState===4){
  		options.callback(request.responseText);
  	}
  }
  if(options.method.toUpperCase()==="POST"){
    request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
  }
  alert("Open: "+((options.params && options.method.toUpperCase()==='GET')?(options.url+"?"+options.params):options.url)+", Send: "+((options.params && options.method.toUpperCase()==="POST")?options.params:null));
	request.open(options.method.toUpperCase(), (options.params && options.method.toUpperCase()==='GET')?(options.url+"?"+options.params):options.url, true);
  request.send((options.params && options.method.toUpperCase()==="POST")?options.params:null);
}

When I tried to do the POST request without setting the content-type header, nothing happened. But when I set the content-type header, it behaves like a form (I call it from the page edit.php?page=asdf, and when I try the post request it goes to edit.php).

I'm calling the request like this:

AJAX({
    url:'save.php',
    method:'POST',
    callback:function(a){
      alert(a);
    },
    params:params
 });

I'm calling it when a form gets submitted, but i have it return false so the form won't submit.

Any ideas appreciated!

[shyam]

perhaps you should also set the Content-Length and Connection headers for the POST

[binaryWeapon]

Thanks for the reply.

When putting in those two headers, I noticed that I was sending request headers before I actually opened the connection. I fixed this, and that fixed the odd redirect. Everything works now! =)

Thanks for mentioning the other 2 headers, I forgot about them and wouldn't have noticed my error if I hadn't went back to put them in!