code: function hotDownloadManifest(requestTimeout) { // eslint-disable-line no-unused-vars
  /******/ 		requestTimeout = requestTimeout || 10000;
  /******/ 		return new Promise(function(resolve, reject) {
  /******/ 			if(typeof XMLHttpRequest === "undefined")
  /******/ 				return reject(new Error("No browser support"));
  /******/ 			try {
  /******/ 				var request = new XMLHttpRequest();
  /******/ 				var requestPath = __webpack_require__.p + "" + hotCurrentHash + ".hot-update.json";
  /******/ 				request.open("GET", requestPath, true);
  /******/ 				request.timeout = requestTimeout;
  /******/ 				request.send(null);
  /******/ 			} catch(err) {
  /******/ 				return reject(err);
  /******/ 			}
  /******/ 			request.onreadystatechange = function() {
  /******/ 				if(request.readyState !== 4) return;
  /******/ 				if(request.status === 0) {
  /******/ 					// timeout
  /******/ 					reject(new Error("Manifest request to " + requestPath + " timed out."));
  /******/ 				} else if(request.status === 404) {
  /******/ 					// no update available
  /******/ 					resolve();
  /******/ 				} else if(request.status !== 200 && request.status !== 304) {
  /******/ 					// other failure
  /******/ 					reject(new Error("Manifest request to " + requestPath + " failed."));
  /******/ 				} else {
  /******/ 					// success
  /******/ 					try {
  /******/ 						var update = JSON.parse(request.responseText);
  /******/ 					} catch(e) {
  /******/ 						reject(e);
  /******/ 						return;
  /******/ 					}
  /******/ 					resolve(update);
  /******/ 				}
  /******/ 			};
  /******/ 		});
  /******/ 	}
docs: *** ***