JSONHttpRequest

jhr.js

/**
 * Perform a JSON Http Request via XMLHttpRequest
 * @param method
 * @param url
 * @param data
 * @param callback
 * @returns {XMLHttpRequest}
 */
var jhr = function ( method, url, data, callback ) {
    var xhr = new XMLHttpRequest();
    xhr.responseJSON = null;

    xhr.open( method, url );
    xhr.addEventListener( 'load',  function () {
        xhr.responseJSON = JSON.parse( xhr.responseText );
        if (typeof callback === "function") {
            callback( xhr.responseJSON, xhr );
        }
    });

    xhr.send( JSON.stringify(data) );

    return xhr;
};