Promise response works with GET, but not with POST in XHR - rest

Question

I am trying to call a URL through XHR.post on the DOJO 1.8. I need catch the STATUS property and getHeader() from promise response, but the problem is, when I call my URL with POST I don't have any promise, and when I call with GET I have all properties that I need, but I only can send the request as POST.
The most strange is that I have another code in AngularJS which works well, this code does the same thing. I am testing DOJO and AngularJS.
I need catch the STATUS information to check if it is 201(created), if true I need catch getHeader('location') and call the URL that I picked up from getHeader('location').
Look at my method in Dojo 1.8:
checkCreation: function(typeFile, id){
var promise = xhr('/rest/list/one', {
handleAs: 'json',
method: 'post',
accepts: 'application/json',
headers: {
Accept: 'application/json',
id: id,
type: typeFile
}
});
promise.response.then(function(response) {
console.log("status", response.status);
console.log("options", response.options);
console.log("url", response.url);
console.log("timestamp", response.options.timestamp);
console.log(response);
});
},

Answer 1

I discovered the problem, I commented the lines followings and now works fine.
//handleAs: 'json',
//accepts: 'application/json',
The handleAs you need to use only when you have a JSON response. About "accepts" I haven't found what difference between "accept" and "Accept"(inside headers) yet.
Now I can take my informations:
console.log('location: ', response.getHeader('location'));
console.log("status: ", response.status);