Try
$.ajax({
url: 'https://api.twitch.tv/kraken/channels/mychannel?channel[status]='+titleStr+'&_method=put',
type: 'GET',
contentType: 'application/json',
dataType: 'jsonp',
headers: {
'Authorization': 'OAuth TOKEN_HERE' // the "OAuth " is important too!
},
success: function(data) {
console.log(data.status);
console.log(data)
}
});
Of course you ARE replacing “mychannel” with your channel name? 