eriwen

/**
 * Make a X-Domain request to url and callback.
 *
 * @param url {String}
 * @param method {String} HTTP verb ('GET', 'POST', 'DELETE', etc.)
 * @param data {String} request body
 * @param callback {Function} to callback on completion
 * @param errback {Function} to callback on error
 */
function xdr(url, method, data, callback, errback) {