diff --git a/service-worker.js b/service-worker.js
deleted file mode 100644
index 1646e814f..000000000
--- a/service-worker.js
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
-  Copyright 2014 Google Inc. All Rights Reserved.
-
-  Licensed under the Apache License, Version 2.0 (the "License");
-  you may not use this file except in compliance with the License.
-  You may obtain a copy of the License at
-
-      http://www.apache.org/licenses/LICENSE-2.0
-
-  Unless required by applicable law or agreed to in writing, software
-  distributed under the License is distributed on an "AS IS" BASIS,
-  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  See the License for the specific language governing permissions and
-  limitations under the License.
-*/
-
-(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.toolbox = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
-"use strict";function debug(e,n){n=n||{};var t=n.debug||globalOptions.debug;t&&console.log("[sw-toolbox] "+e)}function openCache(e){var n;return e&&e.cache&&(n=e.cache.name),n=n||globalOptions.cache.name,caches.open(n)}function fetchAndCache(e,n){n=n||{};var t=n.successResponses||globalOptions.successResponses;return fetch(e.clone()).then(function(c){return"GET"===e.method&&t.test(c.status)&&openCache(n).then(function(t){t.put(e,c).then(function(){var c=n.cache||globalOptions.cache;(c.maxEntries||c.maxAgeSeconds)&&c.name&&queueCacheExpiration(e,t,c)})}),c.clone()})}function queueCacheExpiration(e,n,t){var c=cleanupCache.bind(null,e,n,t);cleanupQueue=cleanupQueue?cleanupQueue.then(c):c()}function cleanupCache(e,n,t){var c=e.url,a=t.maxAgeSeconds,u=t.maxEntries,o=t.name,r=Date.now();return debug("Updating LRU order for "+c+". Max entries is "+u+", max age is "+a),idbCacheExpiration.getDb(o).then(function(e){return idbCacheExpiration.setTimestampForUrl(e,c,r)}).then(function(e){return idbCacheExpiration.expireEntries(e,u,a,r)}).then(function(e){debug("Successfully updated IDB.");var t=e.map(function(e){return n["delete"](e)});return Promise.all(t).then(function(){debug("Done with cache cleanup.")})})["catch"](function(e){debug(e)})}function renameCache(e,n,t){return debug("Renaming cache: ["+e+"] to ["+n+"]",t),caches["delete"](n).then(function(){return Promise.all([caches.open(e),caches.open(n)]).then(function(n){var t=n[0],c=n[1];return t.keys().then(function(e){return Promise.all(e.map(function(e){return t.match(e).then(function(n){return c.put(e,n)})}))}).then(function(){return caches["delete"](e)})})})}var globalOptions=require("./options"),idbCacheExpiration=require("./idb-cache-expiration"),cleanupQueue;module.exports={debug:debug,fetchAndCache:fetchAndCache,openCache:openCache,renameCache:renameCache};
-},{"./idb-cache-expiration":2,"./options":3}],2:[function(require,module,exports){
-"use strict";function openDb(e){return new Promise(function(r,n){var t=indexedDB.open(DB_PREFIX+e,DB_VERSION);t.onupgradeneeded=function(){var e=t.result.createObjectStore(STORE_NAME,{keyPath:URL_PROPERTY});e.createIndex(TIMESTAMP_PROPERTY,TIMESTAMP_PROPERTY,{unique:!1})},t.onsuccess=function(){r(t.result)},t.onerror=function(){n(t.error)}})}function getDb(e){return e in cacheNameToDbPromise||(cacheNameToDbPromise[e]=openDb(e)),cacheNameToDbPromise[e]}function setTimestampForUrl(e,r,n){return new Promise(function(t,o){var i=e.transaction(STORE_NAME,"readwrite"),u=i.objectStore(STORE_NAME);u.put({url:r,timestamp:n}),i.oncomplete=function(){t(e)},i.onabort=function(){o(i.error)}})}function expireOldEntries(e,r,n){return r?new Promise(function(t,o){var i=1e3*r,u=[],c=e.transaction(STORE_NAME,"readwrite"),s=c.objectStore(STORE_NAME),a=s.index(TIMESTAMP_PROPERTY);a.openCursor().onsuccess=function(e){var r=e.target.result;if(r&&n-i>r.value[TIMESTAMP_PROPERTY]){var t=r.value[URL_PROPERTY];u.push(t),s["delete"](t),r["continue"]()}},c.oncomplete=function(){t(u)},c.onabort=o}):Promise.resolve([])}function expireExtraEntries(e,r){return r?new Promise(function(n,t){var o=[],i=e.transaction(STORE_NAME,"readwrite"),u=i.objectStore(STORE_NAME),c=u.index(TIMESTAMP_PROPERTY),s=c.count();c.count().onsuccess=function(){var e=s.result;e>r&&(c.openCursor().onsuccess=function(n){var t=n.target.result;if(t){var i=t.value[URL_PROPERTY];o.push(i),u["delete"](i),e-o.length>r&&t["continue"]()}})},i.oncomplete=function(){n(o)},i.onabort=t}):Promise.resolve([])}function expireEntries(e,r,n,t){return expireOldEntries(e,n,t).then(function(n){return expireExtraEntries(e,r).then(function(e){return n.concat(e)})})}var DB_PREFIX="sw-toolbox-",DB_VERSION=1,STORE_NAME="store",URL_PROPERTY="url",TIMESTAMP_PROPERTY="timestamp",cacheNameToDbPromise={};module.exports={getDb:getDb,setTimestampForUrl:setTimestampForUrl,expireEntries:expireEntries};
-},{}],3:[function(require,module,exports){
-"use strict";var scope;scope=self.registration?self.registration.scope:self.scope||new URL("./",self.location).href,module.exports={cache:{name:"$$$toolbox-cache$$$"+scope+"$$$",maxAgeSeconds:null,maxEntries:null},debug:!1,networkTimeoutSeconds:null,preCacheItems:[],successResponses:/^0|([123]\d\d)|(40[14567])|410$/};
-},{}],4:[function(require,module,exports){
-"use strict";var url=new URL("./",self.location),basePath=url.pathname,pathRegexp=require("path-to-regexp"),Route=function(e,t,i,s){t instanceof RegExp?this.fullUrlRegExp=t:(0!==t.indexOf("/")&&(t=basePath+t),this.keys=[],this.regexp=pathRegexp(t,this.keys)),this.method=e,this.options=s,this.handler=i};Route.prototype.makeHandler=function(e){var t;if(this.regexp){var i=this.regexp.exec(e);t={},this.keys.forEach(function(e,s){t[e.name]=i[s+1]})}return function(e){return this.handler(e,t,this.options)}.bind(this)},module.exports=Route;
-},{"path-to-regexp":13}],5:[function(require,module,exports){
-"use strict";function regexEscape(e){return e.replace(/[-\/\\^$*+?.()|[\]{}]/g,"\\$&")}var Route=require("./route"),keyMatch=function(e,t){for(var r=e.entries(),o=r.next();!o.done;){var n=new RegExp(o.value[0]);if(n.test(t))return o.value[1];o=r.next()}return null},Router=function(){this.routes=new Map,this["default"]=null};["get","post","put","delete","head","any"].forEach(function(e){Router.prototype[e]=function(t,r,o){return this.add(e,t,r,o)}}),Router.prototype.add=function(e,t,r,o){o=o||{};var n;t instanceof RegExp?n=RegExp:(n=o.origin||self.location.origin,n=n instanceof RegExp?n.source:regexEscape(n)),e=e.toLowerCase();var u=new Route(e,t,r,o);this.routes.has(n)||this.routes.set(n,new Map);var a=this.routes.get(n);a.has(e)||a.set(e,new Map);var s=a.get(e),i=u.regexp||u.fullUrlRegExp;s.set(i.source,u)},Router.prototype.matchMethod=function(e,t){var r=new URL(t),o=r.origin,n=r.pathname;return this._match(e,keyMatch(this.routes,o),n)||this._match(e,this.routes.get(RegExp),t)},Router.prototype._match=function(e,t,r){if(t){var o=t.get(e.toLowerCase());if(o){var n=keyMatch(o,r);if(n)return n.makeHandler(r)}}return null},Router.prototype.match=function(e){return this.matchMethod(e.method,e.url)||this.matchMethod("any",e.url)},module.exports=new Router;
-},{"./route":4}],6:[function(require,module,exports){
-"use strict";function cacheFirst(e,r,t){return helpers.debug("Strategy: cache first ["+e.url+"]",t),helpers.openCache(t).then(function(r){return r.match(e).then(function(r){return r?r:helpers.fetchAndCache(e,t)})})}var helpers=require("../helpers");module.exports=cacheFirst;
-},{"../helpers":1}],7:[function(require,module,exports){
-"use strict";function cacheOnly(e,r,c){return helpers.debug("Strategy: cache only ["+e.url+"]",c),helpers.openCache(c).then(function(r){return r.match(e)})}var helpers=require("../helpers");module.exports=cacheOnly;
-},{"../helpers":1}],8:[function(require,module,exports){
-"use strict";function fastest(e,n,t){return helpers.debug("Strategy: fastest ["+e.url+"]",t),new Promise(function(r,s){var c=!1,o=[],a=function(e){o.push(e.toString()),c?s(new Error('Both cache and network failed: "'+o.join('", "')+'"')):c=!0},h=function(e){e instanceof Response?r(e):a("No result returned")};helpers.fetchAndCache(e.clone(),t).then(h,a),cacheOnly(e,n,t).then(h,a)})}var helpers=require("../helpers"),cacheOnly=require("./cacheOnly");module.exports=fastest;
-},{"../helpers":1,"./cacheOnly":7}],9:[function(require,module,exports){
-module.exports={networkOnly:require("./networkOnly"),networkFirst:require("./networkFirst"),cacheOnly:require("./cacheOnly"),cacheFirst:require("./cacheFirst"),fastest:require("./fastest")};
-},{"./cacheFirst":6,"./cacheOnly":7,"./fastest":8,"./networkFirst":10,"./networkOnly":11}],10:[function(require,module,exports){
-"use strict";function networkFirst(e,r,t){t=t||{};var s=t.successResponses||globalOptions.successResponses,n=t.networkTimeoutSeconds||globalOptions.networkTimeoutSeconds;return helpers.debug("Strategy: network first ["+e.url+"]",t),helpers.openCache(t).then(function(r){var o,u,c=[];if(n){var i=new Promise(function(t){o=setTimeout(function(){r.match(e).then(function(e){e&&t(e)})},1e3*n)});c.push(i)}var a=helpers.fetchAndCache(e,t).then(function(e){if(o&&clearTimeout(o),s.test(e.status))return e;throw helpers.debug("Response was an HTTP error: "+e.statusText,t),u=e,new Error("Bad response")})["catch"](function(){return helpers.debug("Network or response error, fallback to cache ["+e.url+"]",t),r.match(e).then(function(e){return e||u})});return c.push(a),Promise.race(c)})}var globalOptions=require("../options"),helpers=require("../helpers");module.exports=networkFirst;
-},{"../helpers":1,"../options":3}],11:[function(require,module,exports){
-"use strict";function networkOnly(e,r,t){return helpers.debug("Strategy: network only ["+e.url+"]",t),fetch(e)}var helpers=require("../helpers");module.exports=networkOnly;
-},{"../helpers":1}],12:[function(require,module,exports){
-"use strict";function cache(e,t){return helpers.openCache(t).then(function(t){return t.add(e)})}function uncache(e,t){return helpers.openCache(t).then(function(t){return t["delete"](e)})}function precache(e){Array.isArray(e)||(e=[e]),options.preCacheItems=options.preCacheItems.concat(e)}require("serviceworker-cache-polyfill");var options=require("./options"),router=require("./router"),helpers=require("./helpers"),strategies=require("./strategies");helpers.debug("Service Worker Toolbox is loading");var flatten=function(e){return e.reduce(function(e,t){return e.concat(t)},[])};self.addEventListener("install",function(e){var t=options.cache.name+"$$$inactive$$$";helpers.debug("install event fired"),helpers.debug("creating cache ["+t+"]"),e.waitUntil(helpers.openCache({cache:{name:t}}).then(function(e){return Promise.all(options.preCacheItems).then(flatten).then(function(t){return helpers.debug("preCache list: "+(t.join(", ")||"(none)")),e.addAll(t)})}))}),self.addEventListener("activate",function(e){helpers.debug("activate event fired");var t=options.cache.name+"$$$inactive$$$";e.waitUntil(helpers.renameCache(t,options.cache.name))}),self.addEventListener("fetch",function(e){var t=router.match(e.request);t?e.respondWith(t(e.request)):router["default"]&&"GET"===e.request.method&&e.respondWith(router["default"](e.request))}),module.exports={networkOnly:strategies.networkOnly,networkFirst:strategies.networkFirst,cacheOnly:strategies.cacheOnly,cacheFirst:strategies.cacheFirst,fastest:strategies.fastest,router:router,options:options,cache:cache,uncache:uncache,precache:precache};
-},{"./helpers":1,"./options":3,"./router":5,"./strategies":9,"serviceworker-cache-polyfill":15}],13:[function(require,module,exports){
-function parse(e){for(var t,r=[],n=0,o=0,p="";null!=(t=PATH_REGEXP.exec(e));){var a=t[0],i=t[1],s=t.index;if(p+=e.slice(o,s),o=s+a.length,i)p+=i[1];else{p&&(r.push(p),p="");var u=t[2],c=t[3],l=t[4],f=t[5],g=t[6],x=t[7],h="+"===g||"*"===g,m="?"===g||"*"===g,y=u||"/",T=l||f||(x?".*":"[^"+y+"]+?");r.push({name:c||n++,prefix:u||"",delimiter:y,optional:m,repeat:h,pattern:escapeGroup(T)})}}return o<e.length&&(p+=e.substr(o)),p&&r.push(p),r}function compile(e){return tokensToFunction(parse(e))}function tokensToFunction(e){for(var t=new Array(e.length),r=0;r<e.length;r++)"object"==typeof e[r]&&(t[r]=new RegExp("^"+e[r].pattern+"$"));return function(r){for(var n="",o=r||{},p=0;p<e.length;p++){var a=e[p];if("string"!=typeof a){var i,s=o[a.name];if(null==s){if(a.optional)continue;throw new TypeError('Expected "'+a.name+'" to be defined')}if(isarray(s)){if(!a.repeat)throw new TypeError('Expected "'+a.name+'" to not repeat, but received "'+s+'"');if(0===s.length){if(a.optional)continue;throw new TypeError('Expected "'+a.name+'" to not be empty')}for(var u=0;u<s.length;u++){if(i=encodeURIComponent(s[u]),!t[p].test(i))throw new TypeError('Expected all "'+a.name+'" to match "'+a.pattern+'", but received "'+i+'"');n+=(0===u?a.prefix:a.delimiter)+i}}else{if(i=encodeURIComponent(s),!t[p].test(i))throw new TypeError('Expected "'+a.name+'" to match "'+a.pattern+'", but received "'+i+'"');n+=a.prefix+i}}else n+=a}return n}}function escapeString(e){return e.replace(/([.+*?=^!:${}()[\]|\/])/g,"\\$1")}function escapeGroup(e){return e.replace(/([=!:$\/()])/g,"\\$1")}function attachKeys(e,t){return e.keys=t,e}function flags(e){return e.sensitive?"":"i"}function regexpToRegexp(e,t){var r=e.source.match(/\((?!\?)/g);if(r)for(var n=0;n<r.length;n++)t.push({name:n,prefix:null,delimiter:null,optional:!1,repeat:!1,pattern:null});return attachKeys(e,t)}function arrayToRegexp(e,t,r){for(var n=[],o=0;o<e.length;o++)n.push(pathToRegexp(e[o],t,r).source);var p=new RegExp("(?:"+n.join("|")+")",flags(r));return attachKeys(p,t)}function stringToRegexp(e,t,r){for(var n=parse(e),o=tokensToRegExp(n,r),p=0;p<n.length;p++)"string"!=typeof n[p]&&t.push(n[p]);return attachKeys(o,t)}function tokensToRegExp(e,t){t=t||{};for(var r=t.strict,n=t.end!==!1,o="",p=e[e.length-1],a="string"==typeof p&&/\/$/.test(p),i=0;i<e.length;i++){var s=e[i];if("string"==typeof s)o+=escapeString(s);else{var u=escapeString(s.prefix),c=s.pattern;s.repeat&&(c+="(?:"+u+c+")*"),c=s.optional?u?"(?:"+u+"("+c+"))?":"("+c+")?":u+"("+c+")",o+=c}}return r||(o=(a?o.slice(0,-2):o)+"(?:\\/(?=$))?"),o+=n?"$":r&&a?"":"(?=\\/|$)",new RegExp("^"+o,flags(t))}function pathToRegexp(e,t,r){return t=t||[],isarray(t)?r||(r={}):(r=t,t=[]),e instanceof RegExp?regexpToRegexp(e,t,r):isarray(e)?arrayToRegexp(e,t,r):stringToRegexp(e,t,r)}var isarray=require("isarray");module.exports=pathToRegexp,module.exports.parse=parse,module.exports.compile=compile,module.exports.tokensToFunction=tokensToFunction,module.exports.tokensToRegExp=tokensToRegExp;var PATH_REGEXP=new RegExp(["(\\\\.)","([\\/.])?(?:(?:\\:(\\w+)(?:\\(((?:\\\\.|[^()])+)\\))?|\\(((?:\\\\.|[^()])+)\\))([+*?])?|(\\*))"].join("|"),"g");
-},{"isarray":14}],14:[function(require,module,exports){
-module.exports=Array.isArray||function(r){return"[object Array]"==Object.prototype.toString.call(r)};
-},{}],15:[function(require,module,exports){
-Cache.prototype.addAll||(Cache.prototype.addAll=function(t){function e(t){this.name="NetworkError",this.code=19,this.message=t}var r=this;return e.prototype=Object.create(Error.prototype),Promise.resolve().then(function(){if(arguments.length<1)throw new TypeError;return t=t.map(function(t){return t instanceof Request?t:String(t)}),Promise.all(t.map(function(t){"string"==typeof t&&(t=new Request(t));var r=new URL(t.url).protocol;if("http:"!==r&&"https:"!==r)throw new e("Invalid scheme");return fetch(t.clone())}))}).then(function(e){return Promise.all(e.map(function(e,n){return r.put(t[n],e)}))}).then(function(){})});
-},{}]},{},[12])(12)
-});
-
-(global => {
-  'use strict';
-
-  // Turn on debug logging, visible in the Developer Tools' console.
-  global.toolbox.options.debug = true;
-
-  // Set up a handler for HTTP GET requests:
-  // - /\.ytimg\.com\// will match any requests whose URL contains 'ytimg.com'.
-  //   A narrower RegExp could be used, but just checking for ytimg.com anywhere
-  //   in the URL should be fine for this sample.
-  // - toolbox.cacheFirst let us to use the predefined cache strategy for those
-  //   requests.
-  global.toolbox.router.get(/\.ytimg\.com\//, global.toolbox.cacheFirst, {
-    // Use a dedicated cache for the responses, separate from the default cache.
-    cache: {
-      name: 'youtube-thumbnails',
-      // Store up to 10 entries in that cache.
-      maxEntries: 10,
-      // Expire any entries that are older than 30 seconds.
-      maxAgeSeconds: 30
-    }
-  });
-
-  // By default, all requests that don't match our custom handler will use the
-  // toolbox.networkFirst cache strategy, and their responses will be stored in
-  // the default cache.
-  global.toolbox.router.default = global.toolbox.networkFirst;
-
-  // Boilerplate to ensure our service worker takes control of the page as soon
-  // as possible.
-  global.addEventListener('install',
-    event => event.waitUntil(global.skipWaiting()));
-  global.addEventListener('activate',
-    event => event.waitUntil(global.clients.claim()));
-
-    // Listen for claiming of our ServiceWorker
-  navigator.serviceWorker.addEventListener('controllerchange', function(event) {
-    // Listen for changes in the state of our ServiceWorker
-    navigator.serviceWorker.controller.addEventListener('statechange', function() {
-      // If the ServiceWorker becomes "activated", let the user know they can go offline!
-      if (this.state === 'activated') {
-        console.log("we're offline")
-      }
-    });
-  });
-})(self);