Request in Twitter API using Jquery and Ajax

Question

I’m trying to get the data from a Twitter page, unsuccessful so far. I got the access token through the PHP Controller, and I intend to use it to make requests.

---

var token = 'Bearer <?php echo $token['twitter'] ?>';
$.ajax({
    type: 'GET',
    url: "https://api.twitter.com/1.1/statuses/user_timeline.json?screen_name=<?php echo $empresa['twitter']?>",
    crossDomain: true,
    dataType: 'jsonp',
    beforeSend : function( xhr ) {
        xhr.setRequestHeader("Authorization", token );
        xhr.setRequestHeader("User-Agent", "My Twitter App v1.0.23");
        xhr.setRequestHeader("Accept-Encoding", "gzip");
    },
}).done(function(data){
    console.log(data);
});

---

According to Twitter, the request must contain the following data in its header:

GET /1.1/statuses/user_timeline.json? Count=100&screen_name=twitterapi HTTP/1.1

Host: api.twitter.com

User-Agent: My Twitter App v1.0.23

Authorization: Bearer AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA%2FAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

Accept-Encoding: gzip

To confirm that the problem was not the key, I implemented the call in PHP, and everything worked perfectly.

When you access the page that contains the script, the call occurs and the error 401 is returned. According to Twitter:

401 Unauthorized

The header that is being inserted in the Ajax call is the same that was inserted in PHP, so what’s the problem?