Question

Mozilla s own specification says simple GET or POST should be natively CORS s without preflighting but so far every POST attempt I ve made has resulted in an OPTIONS header going out. When I change it from POST to get the code immediately sends a proper GET request so the cross site part is working fine.

Here s a slimmed down sample of what I m doing in firefox:

 var destinationUrl =  http://imaginarydevelopment.com/postURL ;
 var invocation = new XMLHttpRequest();
            if (invocation) {
                invocation.open( POST , destinationUrl, true);
                //tried with and without this line
                //invocation.setRequestHeader( Content-Type ,  application/x-www-form-urlencoded );

                invocation.onreadystatechange = (function Handler() {
                if (invocation.readyState == 4)
                        alert( Request made );
                });
                invocation.send(/* tried with and without data*/);
            }

Here s what I already had working in chrome and IE:

var destinationUrl =  http://imaginarydevelopment.com/postURL ;
var destination = { url: destinationUrl, type:  POST , success: AjaxSuccess, error: AjaxError,
            dataType:  text , contentType:  application/x-www-form-urlencoded 
        };
  destination.data = {  rows : rowList,  token : token };
            $jq.ajax(destination);

Answer 1

well, I don t know what all contentTypes actually work but text/plain does on all 3 browsers:

var destination = { url: destinationUrl, type:  POST , success: AjaxSuccess, error: AjaxError,
             contentType:  text/plain 
        };
var postData={  anArray : theArray,  token : token };
            destination.data=JSON.stringify(postData);

$jq.ajax(destination);

However so far I haven t figured out what s stopping the request from doing anything besides running the success method even when a 505 code is returned. Adding a response header of Access-Control-Allow-Origin: * solved the browser not wanting to read the return data.

Answer 2

I have the same problem

https://developer.mozilla.org/En/HTTP_Access_Control

says that the enctype has to be text/plain or you need to use Fx4+ All access headers have to be set correctly

友情链接