diff --git a/package.json b/package.json
index afd53c314..f58a6cea0 100644
--- a/package.json
+++ b/package.json
@@ -18,11 +18,12 @@
   "devDependencies": {
     "@azure/cosmos": "^2.0.5",
     "@bugsnag/js": "^5.0.1",
+    "@ffmpeg-installer/ffmpeg": "^1.0.17",
     "@google-cloud/bigquery": "^2.0.1",
     "@google-cloud/firestore": "^0.19.0",
     "@sentry/node": "^4.3.0",
     "@tensorflow/tfjs-node": "^0.3.0",
-    "@zeit/webpack-asset-relocator-loader": "0.4.5",
+    "@zeit/webpack-asset-relocator-loader": "0.5.0-beta.5",
     "analytics-node": "^3.3.0",
     "apollo-server-express": "^2.2.2",
     "arg": "^4.1.0",
@@ -60,6 +61,7 @@
     "jugglingdb": "2.0.1",
     "koa": "^2.6.2",
     "leveldown": "^4.0.1",
+    "lighthouse": "^5.0.0",
     "loopback": "^3.24.0",
     "mailgun": "^0.5.0",
     "mariadb": "^2.0.1-beta",
@@ -73,6 +75,7 @@
     "passport": "^0.4.0",
     "passport-google-oauth": "^1.0.0",
     "path-platform": "^0.11.15",
+    "pdf2json": "^1.1.8",
     "pdfkit": "^0.8.3",
     "pg": "^7.6.1",
     "pug": "^2.0.3",
diff --git a/scripts/build.js b/scripts/build.js
index 3cb4dac36..58d192bff 100644
--- a/scripts/build.js
+++ b/scripts/build.js
@@ -62,13 +62,12 @@ async function main() {
   // detect unexpected asset emissions from core build
   const unknownAssets = [
     ...Object.keys(cliAssets),
-    ...Object.keys(indexAssets).filter(asset => !asset.startsWith('locales/')),
+    ...Object.keys(indexAssets).filter(asset => !asset.startsWith('locales/') && asset !== 'worker.js' && asset !== 'index1.js'),
     ...Object.keys(relocateLoaderAssets),
     ...Object.keys(shebangLoaderAssets),
-    ...Object.keys(tsLoaderAssets).filter(asset => !asset.startsWith('lib/')),
+    ...Object.keys(tsLoaderAssets).filter(asset => !asset.startsWith('lib/') && !asset.startsWith('typescript/lib')),
     ...Object.keys(sourcemapAssets)
   ].filter(asset => !asset.endsWith('.js.cache') && !asset.endsWith('.cache.js'));
-  
   if (unknownAssets.length) {
     console.error("New assets are being emitted by the core build");
     console.log(unknownAssets);
@@ -111,6 +110,8 @@ module.exports = typescript;
   writeFileSync(__dirname + "/../dist/ncc/loaders/ts-loader.js", tsLoader);
   writeFileSync(__dirname + "/../dist/ncc/loaders/uncacheable.js", readFileSync(__dirname + "/../src/loaders/uncacheable.js"));
   writeFileSync(__dirname + "/../dist/ncc/loaders/empty-loader.js", readFileSync(__dirname + "/../src/loaders/empty-loader.js"));
+  writeFileSync(__dirname + "/../dist/ncc/loaders/notfound-loader.js", readFileSync(__dirname + "/../src/loaders/notfound-loader.js"));
+  writeFileSync(__dirname + "/../dist/ncc/@@notfound.js", readFileSync(__dirname + "/../src/@@notfound.js"));
 
   // copy typescript types
   await copy(
diff --git a/src/@@notfound.js b/src/@@notfound.js
new file mode 100644
index 000000000..60f186dbc
--- /dev/null
+++ b/src/@@notfound.js
@@ -0,0 +1,9 @@
+const id = 'UNKNOWN';
+if (id.startsWith('./') || id.startsWith('../')) {
+  const e = new Error('Cannot find module "' + id + '".');
+  e.code = 'MODULE_NOT_FOUND';
+  throw e;
+}
+else {
+  __non_webpack_require__(id);
+}
diff --git a/src/index.js b/src/index.js
index c2cd247e5..3bef0c86c 100644
--- a/src/index.js
+++ b/src/index.js
@@ -66,7 +66,6 @@ module.exports = (
     existingAssetNames.push(`${filename}.cache.js`);
   }
   const resolvePlugins = [];
-  let tsconfigMatchPath;
   // add TsconfigPathsPlugin to support `paths` resolution in tsconfig
   // we need to catch here because the plugin will
   // error if there's no tsconfig in the working directory
@@ -79,6 +78,21 @@ module.exports = (
     }
   } catch (e) {}
 
+  resolvePlugins.push({
+    apply(resolver) {
+      const resolve = resolver.resolve;
+      resolver.resolve = function (context, path, request, resolveContext, callback) {
+        resolve.call(resolver, context, path, request, resolveContext, function (err, result) {
+          if (!err) return callback(null, result);
+          if (!err.missing || !err.missing.length)
+            return callback(err);
+          // make not found errors runtime errors
+          callback(null, __dirname + '/@@notfound.js' + '?' + request);
+        });
+      };
+    }
+  });
+
   const externalSet = new Set(externals);
 
   let watcher, watchHandler, rebuildHandler;
@@ -118,30 +132,16 @@ module.exports = (
     node: false,
     externals: async ({ context, request }, callback) => {
       if (externalSet.has(request)) return callback(null, `commonjs ${request}`);
-      if (request[0] === "." && (request[1] === "/" || request[1] === "." && request[2] === "/")) {
-        if (request.startsWith("./node_modules/")) request = request.substr(15);
-        else if (request.startsWith("../node_modules/")) request = request.substr(16);
-        else return callback();
-      }
-      if (request[0] === "/" || /^[a-z]:\\/i.test(request) || nodeBuiltins.has(request) ||
-          tsconfigMatchPath && tsconfigMatchPath(request, undefined, undefined, SUPPORTED_EXTENSIONS))
-        return callback();
-      const pkgNameMatch = request.match(pkgNameRegEx);
-      if (pkgNameMatch) request = pkgNameMatch[0];
-      let pkgPath = context + sep + 'node_modules' + sep + request;
-      do {
-        if (await new Promise((resolve, reject) =>
-          compiler.inputFileSystem.stat(pkgPath, (err, stats) =>
-            err && err.code !== 'ENOENT' ? reject(err) : resolve(stats ? stats.isDirectory() : false)
-          )
-        ))
-          return callback();
-      } while (pkgPath.length > (pkgPath = pkgPath.substr(0, pkgPath.lastIndexOf(sep, pkgPath.length - 15 - request.length)) + sep + 'node_modules' + sep + request).length);
-      console.error(`ncc: Module directory "${context}" attempted to require "${request}" but could not be resolved, assuming external.`);
-      return callback(null, `commonjs ${request}`);
+      return callback();
     },
     module: {
       rules: [
+        {
+          test: /@@notfound\.js$/,
+          use: [{
+            loader: eval('__dirname + "/loaders/notfound-loader.js"')
+          }]
+        },
         {
           test: /\.(js|mjs|tsx?|node)$/,
           use: [{
@@ -184,6 +184,36 @@ module.exports = (
     plugins: [
       {
         apply(compiler) {
+          // override "not found" context to try built require first
+          compiler.hooks.compilation.tap("ncc", compilation => {
+            compilation.moduleTemplates.javascript.hooks.render.tap(
+              "ncc",
+              (
+                moduleSourcePostModule,
+                module,
+                options,
+                dependencyTemplates
+              ) => {
+                if (
+                  module._contextDependencies &&
+                  moduleSourcePostModule._value.match(
+                    /webpackEmptyAsyncContext|webpackEmptyContext/
+                  )
+                ) {
+                  // ensure __webpack_require__ is added to wrapper
+                  module.type = 'custom';
+                  return moduleSourcePostModule._value.replace(
+                    "var e = new Error",
+                    `if (typeof req === 'number' && __webpack_require__.m[req])\n` +
+                    `  return __webpack_require__(req);\n` +
+                    `try { return require(req) }\n` + 
+                    `catch (e) { if (e.code !== 'MODULE_NOT_FOUND') throw e }\n` +
+                    `var e = new Error`
+                  );
+                }
+              }
+            );
+          });
           compiler.hooks.compilation.tap("relocate-loader", relocateLoader.initAssetPermissionsCache);
           compiler.hooks.watchRun.tap("ncc", () => {
             if (rebuildHandler)
diff --git a/src/loaders/notfound-loader.js b/src/loaders/notfound-loader.js
new file mode 100644
index 000000000..5b925fa36
--- /dev/null
+++ b/src/loaders/notfound-loader.js
@@ -0,0 +1,7 @@
+module.exports = function (input, map) {
+  if (this.cacheable)
+    this.cacheable();
+  const id = this.resourceQuery.substr(1);
+  input = input.replace('\'UNKNOWN\'', JSON.stringify(id));
+  this.callback(null, input, map);
+};
diff --git a/test/integration/ffmpeg.js b/test/integration/ffmpeg.js
new file mode 100644
index 000000000..d21b24f87
--- /dev/null
+++ b/test/integration/ffmpeg.js
@@ -0,0 +1,2 @@
+let {path} = require('@ffmpeg-installer/ffmpeg');
+console.log(path);
diff --git a/test/integration/lighthouse.js b/test/integration/lighthouse.js
new file mode 100644
index 000000000..289e4de7b
--- /dev/null
+++ b/test/integration/lighthouse.js
@@ -0,0 +1 @@
+require('lighthouse');
diff --git a/test/integration/pdf2json.js b/test/integration/pdf2json.js
new file mode 100644
index 000000000..ea97ed951
--- /dev/null
+++ b/test/integration/pdf2json.js
@@ -0,0 +1,8 @@
+const { parse } = require('url')
+const PDFParser = require('pdf2json')
+
+module.exports = (req, res) => {
+  const { query } = parse(req.url, true)
+  const { name = 'World' } = query
+  res.end(`Hello ${name}!`)
+}
\ No newline at end of file
diff --git a/test/integration/twilio.js b/test/integration/twilio.js
index 149544887..c8e6337a3 100644
--- a/test/integration/twilio.js
+++ b/test/integration/twilio.js
@@ -6,3 +6,4 @@ try {
     throw err;
   }
 }
+
diff --git a/test/unit/runtime-notfound/input.js b/test/unit/runtime-notfound/input.js
new file mode 100644
index 000000000..2b48e2b40
--- /dev/null
+++ b/test/unit/runtime-notfound/input.js
@@ -0,0 +1,2 @@
+require('./not-found.js');
+require('./not-foud2.js');
\ No newline at end of file
diff --git a/test/unit/runtime-notfound/output-coverage.js b/test/unit/runtime-notfound/output-coverage.js
new file mode 100644
index 000000000..e1579b4e6
--- /dev/null
+++ b/test/unit/runtime-notfound/output-coverage.js
@@ -0,0 +1,85 @@
+module.exports =
+/******/ (function(modules, runtime) { // webpackBootstrap
+/******/ 	"use strict";
+/******/ 	// The module cache
+/******/ 	var installedModules = {};
+/******/
+/******/ 	// The require function
+/******/ 	function __webpack_require__(moduleId) {
+/******/
+/******/ 		// Check if module is in cache
+/******/ 		if(installedModules[moduleId]) {
+/******/ 			return installedModules[moduleId].exports;
+/******/ 		}
+/******/ 		// Create a new module (and put it into the cache)
+/******/ 		var module = installedModules[moduleId] = {
+/******/ 			i: moduleId,
+/******/ 			l: false,
+/******/ 			exports: {}
+/******/ 		};
+/******/
+/******/ 		// Execute the module function
+/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
+/******/
+/******/ 		// Flag the module as loaded
+/******/ 		module.l = true;
+/******/
+/******/ 		// Return the exports of the module
+/******/ 		return module.exports;
+/******/ 	}
+/******/
+/******/
+/******/
+/******/ 	// the startup function
+/******/ 	function startup() {
+/******/ 		// Load entry module and return exports
+/******/ 		return __webpack_require__(226);
+/******/ 	};
+/******/
+/******/ 	// run startup
+/******/ 	return startup();
+/******/ })
+/************************************************************************/
+/******/ ({
+
+/***/ 226:
+/***/ (function(__unusedmodule, __unusedexports, __webpack_require__) {
+
+__webpack_require__(590);
+__webpack_require__(548);
+
+/***/ }),
+
+/***/ 548:
+/***/ (function() {
+
+const id = "./not-foud2.js";
+if (id.startsWith('./') || id.startsWith('../')) {
+  const e = new Error('Cannot find module "' + id + '".');
+  e.code = 'MODULE_NOT_FOUND';
+  throw e;
+}
+else {
+  eval("require")(id);
+}
+
+
+/***/ }),
+
+/***/ 590:
+/***/ (function() {
+
+const id = "./not-found.js";
+if (id.startsWith('./') || id.startsWith('../')) {
+  const e = new Error('Cannot find module "' + id + '".');
+  e.code = 'MODULE_NOT_FOUND';
+  throw e;
+}
+else {
+  eval("require")(id);
+}
+
+
+/***/ })
+
+/******/ });
\ No newline at end of file
diff --git a/test/unit/runtime-notfound/output.js b/test/unit/runtime-notfound/output.js
new file mode 100644
index 000000000..9485e2e13
--- /dev/null
+++ b/test/unit/runtime-notfound/output.js
@@ -0,0 +1,85 @@
+module.exports =
+/******/ (function(modules, runtime) { // webpackBootstrap
+/******/ 	"use strict";
+/******/ 	// The module cache
+/******/ 	var installedModules = {};
+/******/
+/******/ 	// The require function
+/******/ 	function __webpack_require__(moduleId) {
+/******/
+/******/ 		// Check if module is in cache
+/******/ 		if(installedModules[moduleId]) {
+/******/ 			return installedModules[moduleId].exports;
+/******/ 		}
+/******/ 		// Create a new module (and put it into the cache)
+/******/ 		var module = installedModules[moduleId] = {
+/******/ 			i: moduleId,
+/******/ 			l: false,
+/******/ 			exports: {}
+/******/ 		};
+/******/
+/******/ 		// Execute the module function
+/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
+/******/
+/******/ 		// Flag the module as loaded
+/******/ 		module.l = true;
+/******/
+/******/ 		// Return the exports of the module
+/******/ 		return module.exports;
+/******/ 	}
+/******/
+/******/
+/******/
+/******/ 	// the startup function
+/******/ 	function startup() {
+/******/ 		// Load entry module and return exports
+/******/ 		return __webpack_require__(768);
+/******/ 	};
+/******/
+/******/ 	// run startup
+/******/ 	return startup();
+/******/ })
+/************************************************************************/
+/******/ ({
+
+/***/ 663:
+/***/ (function() {
+
+const id = "./not-foud2.js";
+if (id.startsWith('./') || id.startsWith('../')) {
+  const e = new Error('Cannot find module "' + id + '".');
+  e.code = 'MODULE_NOT_FOUND';
+  throw e;
+}
+else {
+  eval("require")(id);
+}
+
+
+/***/ }),
+
+/***/ 768:
+/***/ (function(__unusedmodule, __unusedexports, __webpack_require__) {
+
+__webpack_require__(925);
+__webpack_require__(663);
+
+/***/ }),
+
+/***/ 925:
+/***/ (function() {
+
+const id = "./not-found.js";
+if (id.startsWith('./') || id.startsWith('../')) {
+  const e = new Error('Cannot find module "' + id + '".');
+  e.code = 'MODULE_NOT_FOUND';
+  throw e;
+}
+else {
+  eval("require")(id);
+}
+
+
+/***/ })
+
+/******/ });
\ No newline at end of file
diff --git a/test/unit/shebang/output-coverage.js b/test/unit/shebang/output-coverage.js
index e3830274c..0725dc404 100644
--- a/test/unit/shebang/output-coverage.js
+++ b/test/unit/shebang/output-coverage.js
@@ -34,7 +34,7 @@ module.exports =
 /******/ 	// the startup function
 /******/ 	function startup() {
 /******/ 		// Load entry module and return exports
-/******/ 		return __webpack_require__(817);
+/******/ 		return __webpack_require__(374);
 /******/ 	};
 /******/
 /******/ 	// run startup
@@ -43,7 +43,7 @@ module.exports =
 /************************************************************************/
 /******/ ({
 
-/***/ 817:
+/***/ 374:
 /***/ (function(module) {
 
 module.exports = 'asdf';
diff --git a/test/unit/shebang/output.js b/test/unit/shebang/output.js
index 0f87511f8..4ac0ac502 100644
--- a/test/unit/shebang/output.js
+++ b/test/unit/shebang/output.js
@@ -34,7 +34,7 @@ module.exports =
 /******/ 	// the startup function
 /******/ 	function startup() {
 /******/ 		// Load entry module and return exports
-/******/ 		return __webpack_require__(408);
+/******/ 		return __webpack_require__(780);
 /******/ 	};
 /******/
 /******/ 	// run startup
@@ -43,7 +43,7 @@ module.exports =
 /************************************************************************/
 /******/ ({
 
-/***/ 408:
+/***/ 780:
 /***/ (function(module) {
 
 module.exports = 'asdf';
diff --git a/test/unit/ts-decl/output-coverage.js b/test/unit/ts-decl/output-coverage.js
index 3475cacad..99c12358a 100644
--- a/test/unit/ts-decl/output-coverage.js
+++ b/test/unit/ts-decl/output-coverage.js
@@ -33,7 +33,7 @@ module.exports =
 /******/ 	// the startup function
 /******/ 	function startup() {
 /******/ 		// Load entry module and return exports
-/******/ 		return __webpack_require__(492);
+/******/ 		return __webpack_require__(326);
 /******/ 	};
 /******/ 	// initialize runtime
 /******/ 	runtime(__webpack_require__);
@@ -44,7 +44,7 @@ module.exports =
 /************************************************************************/
 /******/ ({
 
-/***/ 177:
+/***/ 37:
 /***/ (function(__unusedmodule, exports) {
 
 "use strict";
@@ -58,12 +58,12 @@ exports.test = test;
 
 /***/ }),
 
-/***/ 492:
+/***/ 326:
 /***/ (function(__unusedmodule, __webpack_exports__, __webpack_require__) {
 
 "use strict";
 __webpack_require__.r(__webpack_exports__);
-/* harmony import */ var _test_ts__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(177);
+/* harmony import */ var _test_ts__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(37);
 /* harmony import */ var _test_ts__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(_test_ts__WEBPACK_IMPORTED_MODULE_0__);
 /* harmony reexport (unknown) */ for(var __WEBPACK_IMPORT_KEY__ in _test_ts__WEBPACK_IMPORTED_MODULE_0__) if(__WEBPACK_IMPORT_KEY__ !== "default") __webpack_require__.d(__webpack_exports__, __WEBPACK_IMPORT_KEY__, function(key) { return _test_ts__WEBPACK_IMPORTED_MODULE_0__[key]; }.bind(0, __WEBPACK_IMPORT_KEY__));
 
diff --git a/test/unit/ts-decl/output.js b/test/unit/ts-decl/output.js
index 413e05164..75422d304 100644
--- a/test/unit/ts-decl/output.js
+++ b/test/unit/ts-decl/output.js
@@ -33,7 +33,7 @@ module.exports =
 /******/ 	// the startup function
 /******/ 	function startup() {
 /******/ 		// Load entry module and return exports
-/******/ 		return __webpack_require__(724);
+/******/ 		return __webpack_require__(315);
 /******/ 	};
 /******/ 	// initialize runtime
 /******/ 	runtime(__webpack_require__);
@@ -44,29 +44,29 @@ module.exports =
 /************************************************************************/
 /******/ ({
 
-/***/ 550:
-/***/ (function(__unusedmodule, exports) {
+/***/ 315:
+/***/ (function(__unusedmodule, __webpack_exports__, __webpack_require__) {
 
 "use strict";
+__webpack_require__.r(__webpack_exports__);
+/* harmony import */ var _test_ts__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(765);
+/* harmony import */ var _test_ts__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(_test_ts__WEBPACK_IMPORTED_MODULE_0__);
+/* harmony reexport (unknown) */ for(var __WEBPACK_IMPORT_KEY__ in _test_ts__WEBPACK_IMPORTED_MODULE_0__) if(__WEBPACK_IMPORT_KEY__ !== "default") __webpack_require__.d(__webpack_exports__, __WEBPACK_IMPORT_KEY__, function(key) { return _test_ts__WEBPACK_IMPORTED_MODULE_0__[key]; }.bind(0, __WEBPACK_IMPORT_KEY__));
 
-exports.__esModule = true;
-function test(arg) {
-    return arg;
-}
-exports.test = test;
 
 
 /***/ }),
 
-/***/ 724:
-/***/ (function(__unusedmodule, __webpack_exports__, __webpack_require__) {
+/***/ 765:
+/***/ (function(__unusedmodule, exports) {
 
 "use strict";
-__webpack_require__.r(__webpack_exports__);
-/* harmony import */ var _test_ts__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(550);
-/* harmony import */ var _test_ts__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(_test_ts__WEBPACK_IMPORTED_MODULE_0__);
-/* harmony reexport (unknown) */ for(var __WEBPACK_IMPORT_KEY__ in _test_ts__WEBPACK_IMPORTED_MODULE_0__) if(__WEBPACK_IMPORT_KEY__ !== "default") __webpack_require__.d(__webpack_exports__, __WEBPACK_IMPORT_KEY__, function(key) { return _test_ts__WEBPACK_IMPORTED_MODULE_0__[key]; }.bind(0, __WEBPACK_IMPORT_KEY__));
 
+exports.__esModule = true;
+function test(arg) {
+    return arg;
+}
+exports.test = test;
 
 
 /***/ })
diff --git a/test/unit/tsconfig-paths-conflicting-external/output-coverage.js b/test/unit/tsconfig-paths-conflicting-external/output-coverage.js
index 1ca0b3602..dc2ea4e34 100644
--- a/test/unit/tsconfig-paths-conflicting-external/output-coverage.js
+++ b/test/unit/tsconfig-paths-conflicting-external/output-coverage.js
@@ -33,7 +33,7 @@ module.exports =
 /******/ 	// the startup function
 /******/ 	function startup() {
 /******/ 		// Load entry module and return exports
-/******/ 		return __webpack_require__(478);
+/******/ 		return __webpack_require__(22);
 /******/ 	};
 /******/
 /******/ 	// run startup
@@ -42,19 +42,19 @@ module.exports =
 /************************************************************************/
 /******/ ({
 
-/***/ 478:
+/***/ 22:
 /***/ (function(__unusedmodule, exports, __webpack_require__) {
 
 "use strict";
 
 exports.__esModule = true;
-var _module_1 = __webpack_require__(744);
+var _module_1 = __webpack_require__(793);
 console.log(_module_1["default"]);
 
 
 /***/ }),
 
-/***/ 744:
+/***/ 793:
 /***/ (function(__unusedmodule, exports) {
 
 "use strict";
diff --git a/test/unit/tsconfig-paths-conflicting-external/output.js b/test/unit/tsconfig-paths-conflicting-external/output.js
index e669ca9be..d5d2b8b22 100644
--- a/test/unit/tsconfig-paths-conflicting-external/output.js
+++ b/test/unit/tsconfig-paths-conflicting-external/output.js
@@ -33,7 +33,7 @@ module.exports =
 /******/ 	// the startup function
 /******/ 	function startup() {
 /******/ 		// Load entry module and return exports
-/******/ 		return __webpack_require__(266);
+/******/ 		return __webpack_require__(513);
 /******/ 	};
 /******/
 /******/ 	// run startup
@@ -42,23 +42,32 @@ module.exports =
 /************************************************************************/
 /******/ ({
 
-/***/ 250:
-/***/ (function(module) {
-
-module.exports = require("@module");
-
-/***/ }),
-
-/***/ 266:
+/***/ 513:
 /***/ (function(__unusedmodule, exports, __webpack_require__) {
 
 "use strict";
 
 exports.__esModule = true;
-var _module_1 = __webpack_require__(250);
+var _module_1 = __webpack_require__(545);
 console.log(_module_1["default"]);
 
 
+/***/ }),
+
+/***/ 545:
+/***/ (function() {
+
+const id = "@module";
+if (id.startsWith('./') || id.startsWith('../')) {
+  const e = new Error('Cannot find module "' + id + '".');
+  e.code = 'MODULE_NOT_FOUND';
+  throw e;
+}
+else {
+  eval("require")(id);
+}
+
+
 /***/ })
 
 /******/ });
\ No newline at end of file
diff --git a/test/unit/tsconfig-paths/output-coverage.js b/test/unit/tsconfig-paths/output-coverage.js
index cb209dec7..ca7b75145 100644
--- a/test/unit/tsconfig-paths/output-coverage.js
+++ b/test/unit/tsconfig-paths/output-coverage.js
@@ -33,7 +33,7 @@ module.exports =
 /******/ 	// the startup function
 /******/ 	function startup() {
 /******/ 		// Load entry module and return exports
-/******/ 		return __webpack_require__(921);
+/******/ 		return __webpack_require__(134);
 /******/ 	};
 /******/
 /******/ 	// run startup
@@ -42,19 +42,19 @@ module.exports =
 /************************************************************************/
 /******/ ({
 
-/***/ 921:
+/***/ 134:
 /***/ (function(__unusedmodule, exports, __webpack_require__) {
 
 "use strict";
 
 exports.__esModule = true;
-var _module_1 = __webpack_require__(923);
+var _module_1 = __webpack_require__(254);
 console.log(_module_1["default"]);
 
 
 /***/ }),
 
-/***/ 923:
+/***/ 254:
 /***/ (function(__unusedmodule, exports) {
 
 "use strict";
diff --git a/test/unit/tsconfig-paths/output.js b/test/unit/tsconfig-paths/output.js
index 8cc375c0d..a1d096116 100644
--- a/test/unit/tsconfig-paths/output.js
+++ b/test/unit/tsconfig-paths/output.js
@@ -33,7 +33,7 @@ module.exports =
 /******/ 	// the startup function
 /******/ 	function startup() {
 /******/ 		// Load entry module and return exports
-/******/ 		return __webpack_require__(710);
+/******/ 		return __webpack_require__(121);
 /******/ 	};
 /******/
 /******/ 	// run startup
@@ -42,23 +42,32 @@ module.exports =
 /************************************************************************/
 /******/ ({
 
-/***/ 250:
-/***/ (function(module) {
-
-module.exports = require("@module");
-
-/***/ }),
-
-/***/ 710:
+/***/ 121:
 /***/ (function(__unusedmodule, exports, __webpack_require__) {
 
 "use strict";
 
 exports.__esModule = true;
-var _module_1 = __webpack_require__(250);
+var _module_1 = __webpack_require__(545);
 console.log(_module_1["default"]);
 
 
+/***/ }),
+
+/***/ 545:
+/***/ (function() {
+
+const id = "@module";
+if (id.startsWith('./') || id.startsWith('../')) {
+  const e = new Error('Cannot find module "' + id + '".');
+  e.code = 'MODULE_NOT_FOUND';
+  throw e;
+}
+else {
+  eval("require")(id);
+}
+
+
 /***/ })
 
 /******/ });
\ No newline at end of file
diff --git a/test/watcher.test.js b/test/watcher.test.js
index 85d29b150..5f07a977f 100644
--- a/test/watcher.test.js
+++ b/test/watcher.test.js
@@ -101,7 +101,6 @@ it('Should support custom watch API', async () => {
   await new Promise((resolve, reject) => {
     const watcher = new CustomWatchFileSystem(function watchStart (files, dirs, missing) {
       expect(files.length).toBeGreaterThan(100);
-      expect(dirs.length).toBeGreaterThan(0);
       expect(missing.length).toBeGreaterThan(100);
       if (buildCnt < 3) {
         setTimeout(() => {
diff --git a/yarn.lock b/yarn.lock
index b9c0d24be..0ec37924d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -93,6 +93,42 @@
     request "^2.87.0"
     stack-generator "^2.0.3"
 
+"@ffmpeg-installer/darwin-x64@4.1.0":
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/@ffmpeg-installer/darwin-x64/-/darwin-x64-4.1.0.tgz#48e1706c690e628148482bfb64acb67472089aaa"
+  integrity sha512-Z4EyG3cIFjdhlY8wI9aLUXuH8nVt7E9SlMVZtWvSPnm2sm37/yC2CwjUzyCQbJbySnef1tQwGG2Sx+uWhd9IAw==
+
+"@ffmpeg-installer/ffmpeg@^1.0.17":
+  version "1.0.17"
+  resolved "https://registry.yarnpkg.com/@ffmpeg-installer/ffmpeg/-/ffmpeg-1.0.17.tgz#ca0a048e5c5439a9632a391e9a441f88f46624f8"
+  integrity sha512-DClZOfrYTvamCfJ9ToFj58hMfEyH5HlHN/zSTaPzfev3I+Vy5J9qBGGAyquAmY+/FOFBtChdXBu64D6H3uZhkA==
+  optionalDependencies:
+    "@ffmpeg-installer/darwin-x64" "4.1.0"
+    "@ffmpeg-installer/linux-ia32" "4.1.0"
+    "@ffmpeg-installer/linux-x64" "4.1.0"
+    "@ffmpeg-installer/win32-ia32" "4.1.0"
+    "@ffmpeg-installer/win32-x64" "4.1.0"
+
+"@ffmpeg-installer/linux-ia32@4.1.0":
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/@ffmpeg-installer/linux-ia32/-/linux-ia32-4.1.0.tgz#adad70b0d0d9d8d813983d6e683c5a338a75e442"
+  integrity sha512-0LWyFQnPf+Ij9GQGD034hS6A90URNu9HCtQ5cTqo5MxOEc7Rd8gLXrJvn++UmxhU0J5RyRE9KRYstdCVUjkNOQ==
+
+"@ffmpeg-installer/linux-x64@4.1.0":
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/@ffmpeg-installer/linux-x64/-/linux-x64-4.1.0.tgz#b4a5d89c4e12e6d9306dbcdc573df716ec1c4323"
+  integrity sha512-Y5BWhGLU/WpQjOArNIgXD3z5mxxdV8c41C+U15nsE5yF8tVcdCGet5zPs5Zy3Ta6bU7haGpIzryutqCGQA/W8A==
+
+"@ffmpeg-installer/win32-ia32@4.1.0":
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/@ffmpeg-installer/win32-ia32/-/win32-ia32-4.1.0.tgz#6eac4fb691b64c02e7a116c1e2d167f3e9b40638"
+  integrity sha512-FV2D7RlaZv/lrtdhaQ4oETwoFUsUjlUiasiZLDxhEUPdNDWcH1OU9K1xTvqz+OXLdsmYelUDuBS/zkMOTtlUAw==
+
+"@ffmpeg-installer/win32-x64@4.1.0":
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/@ffmpeg-installer/win32-x64/-/win32-x64-4.1.0.tgz#17e8699b5798d4c60e36e2d6326a8ebe5e95a2c5"
+  integrity sha512-Drt5u2vzDnIONf4ZEkKtFlbvwj6rI3kxw1Ck9fpudmtgaZIHD4ucsWB2lCZBXRxJgXR+2IMSti+4rtM4C4rXgg==
+
 "@firebase/app-types@0.3.2":
   version "0.3.2"
   resolved "https://registry.yarnpkg.com/@firebase/app-types/-/app-types-0.3.2.tgz#a92dc544290e2893bd8c02a81e684dae3d8e7c85"
@@ -1189,10 +1225,10 @@
   resolved "https://registry.yarnpkg.com/@xtuc/long/-/long-4.2.2.tgz#d291c6a4e97989b5c61d9acf396ae4fe133a718d"
   integrity sha512-NuHqBY1PB/D8xU6s/thBgOAiAP7HOYDQ32+BFZILJ8ivkUkAHQnWfn6WhL79Owj1qmUnoN/YPhktdIoucipkAQ==
 
-"@zeit/webpack-asset-relocator-loader@0.4.5":
-  version "0.4.5"
-  resolved "https://registry.yarnpkg.com/@zeit/webpack-asset-relocator-loader/-/webpack-asset-relocator-loader-0.4.5.tgz#2bdc602a8b86f14d1e8728c01c92d16db9a18c6b"
-  integrity sha512-VKPt3nLAyDGaD85B6o3pR9J4a9WN1s5VLWmr6mO5whJf4+qLCTW+4nF6kegohJPIQSX0lAMxfmrgXKN8CB6jFw==
+"@zeit/webpack-asset-relocator-loader@0.5.0-beta.5":
+  version "0.5.0-beta.5"
+  resolved "https://registry.yarnpkg.com/@zeit/webpack-asset-relocator-loader/-/webpack-asset-relocator-loader-0.5.0-beta.5.tgz#dd419d7a5a1d19d32b8ec48fcffae5756ed917c8"
+  integrity sha512-kzEobQetg91vkqFhVr4R3eDIshrNynRT0d5RgTelM065HeqBtXqPJIVKodHAx0fnszsyihlEPc+oM8AZSpiZAg==
   dependencies:
     sourcemap-codec "^1.4.4"
 
@@ -1204,6 +1240,11 @@ JSONStream@^1.3.1, JSONStream@^1.3.4, JSONStream@^1.3.5:
     jsonparse "^1.2.0"
     through ">=2.2.7 <3"
 
+"JSV@>= 4.0.x":
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/JSV/-/JSV-4.0.2.tgz#d077f6825571f82132f9dffaed587b4029feff57"
+  integrity sha1-0Hf2glVx+CEy+d/67Vh7QCn+/1c=
+
 abab@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/abab/-/abab-2.0.0.tgz#aba0ab4c5eee2d4c79d3487d85450fb2376ebb0f"
@@ -1403,6 +1444,11 @@ ansi-styles@^3.2.0, ansi-styles@^3.2.1:
   dependencies:
     color-convert "^1.9.0"
 
+ansi-styles@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-1.0.0.tgz#cb102df1c56f5123eab8b67cd7b98027a0279178"
+  integrity sha1-yxAt8cVvUSPquLZ817mAJ6AnkXg=
+
 ansi-wrap@0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/ansi-wrap/-/ansi-wrap-0.1.0.tgz#a82250ddb0015e9a27ca82e82ea603bbfa45efaf"
@@ -1833,6 +1879,11 @@ aws4@^1.8.0:
   resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.8.0.tgz#f0e003d9ca9e7f59c7a508945d7b2ef9a04a542f"
   integrity sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ==
 
+axe-core@3.2.2:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/axe-core/-/axe-core-3.2.2.tgz#b06d6e9ae4636d706068843272bfaeed3fe97362"
+  integrity sha512-gAy4kMSPpuRJV3mwictJqlg5LhE84Vw2CydKdC4tvrLhR6+G3KW51zbL/vYujcLA2jvWOq3HMHrVeNuw+mrLVA==
+
 axios-retry@^3.0.2:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/axios-retry/-/axios-retry-3.1.1.tgz#88d2971f671a9023b21d887c5dcac6c54f332cde"
@@ -2662,6 +2713,15 @@ chalk@^2.0.0, chalk@^2.0.1, chalk@^2.3.0:
     escape-string-regexp "^1.0.5"
     supports-color "^5.3.0"
 
+chalk@~0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-0.4.0.tgz#5199a3ddcd0c1efe23bc08c1b027b06176e0c64f"
+  integrity sha1-UZmj3c0MHv4jvAjBsCewYXbgxk8=
+  dependencies:
+    ansi-styles "~1.0.0"
+    has-color "~0.1.0"
+    strip-ansi "~0.1.0"
+
 change-case@^2.3.0:
   version "2.3.1"
   resolved "https://registry.yarnpkg.com/change-case/-/change-case-2.3.1.tgz#2c4fde3f063bb41d00cd68e0d5a09db61cbe894f"
@@ -2691,6 +2751,11 @@ character-parser@^2.1.1:
   dependencies:
     is-regex "^1.0.3"
 
+chardet@^0.4.0:
+  version "0.4.2"
+  resolved "https://registry.yarnpkg.com/chardet/-/chardet-0.4.2.tgz#b5473b33dc97c424e5d98dc87d55d4d8a29c8bf2"
+  integrity sha1-tUc7M9yXxCTl2Y3IfVXU2KKci/I=
+
 charenc@~0.0.1:
   version "0.0.2"
   resolved "https://registry.yarnpkg.com/charenc/-/charenc-0.0.2.tgz#c0a1d2f3a7092e03774bfa83f14c0fc5790a8667"
@@ -2720,6 +2785,17 @@ chrome-launcher@^0.10.0:
     mkdirp "0.5.1"
     rimraf "^2.6.1"
 
+chrome-launcher@^0.10.7:
+  version "0.10.7"
+  resolved "https://registry.yarnpkg.com/chrome-launcher/-/chrome-launcher-0.10.7.tgz#5e2a9e99f212e0501d9c7024802acd01a812f5d5"
+  integrity sha512-IoQLp64s2n8OQuvKZwt77CscVj3UlV2Dj7yZtd1EBMld9mSdGcsGy9fN5hd/r4vJuWZR09it78n1+A17gB+AIQ==
+  dependencies:
+    "@types/node" "*"
+    is-wsl "^1.1.0"
+    lighthouse-logger "^1.0.0"
+    mkdirp "0.5.1"
+    rimraf "^2.6.1"
+
 chrome-remote-interface@^0.25.5:
   version "0.25.7"
   resolved "https://registry.yarnpkg.com/chrome-remote-interface/-/chrome-remote-interface-0.25.7.tgz#827e85fbef3cc561a9ef2404eb7eee355968c5bc"
@@ -2809,6 +2885,13 @@ cli-columns@^3.1.2:
     string-width "^2.0.0"
     strip-ansi "^3.0.1"
 
+cli-cursor@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-2.1.0.tgz#b35dac376479facc3e94747d41d0d0f5238ffcb5"
+  integrity sha1-s12sN2R5+sw+lHR9QdDQ9SOP/LU=
+  dependencies:
+    restore-cursor "^2.0.0"
+
 cli-table3@^0.5.0, cli-table3@^0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/cli-table3/-/cli-table3-0.5.1.tgz#0252372d94dfc40dbd8df06005f48f31f656f202"
@@ -2819,6 +2902,11 @@ cli-table3@^0.5.0, cli-table3@^0.5.1:
   optionalDependencies:
     colors "^1.1.2"
 
+cli-width@^2.0.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/cli-width/-/cli-width-2.2.0.tgz#ff19ede8a9a5e579324147b0c11f0fbcbabed639"
+  integrity sha1-/xnt6Kml5XkyQUewwR8PvLq+1jk=
+
 cliui@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/cliui/-/cliui-2.1.0.tgz#4b475760ff80264c762c3a1719032e91c7fea0d1"
@@ -3053,7 +3141,7 @@ config-chain@^1.1.12, config-chain@~1.1.11:
     ini "^1.3.4"
     proto-list "~1.2.1"
 
-configstore@^3.0.0, configstore@^3.1.2:
+configstore@^3.0.0, configstore@^3.1.1, configstore@^3.1.2:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/configstore/-/configstore-3.1.2.tgz#c6f25defaeef26df12dd33414b001fe81a543f8f"
   integrity sha512-vtv5HtGjcYUgFrXc6Kx747B83MRRVS5R1VTEQoXvuP+kMI+if6uywV0nDGoiydJRy4yk7h9od5Og0kxx4zUXmw==
@@ -3287,6 +3375,13 @@ cssom@0.3.x, "cssom@>= 0.3.2 < 0.4.0":
   resolved "https://registry.yarnpkg.com/cssom/-/cssom-0.3.4.tgz#8cd52e8a3acfd68d3aed38ee0a640177d2f9d797"
   integrity sha512-+7prCSORpXNeR4/fUP3rL+TzqtiFfhMvTd7uEqMdgPvLPt4+uzFUeufx5RHjGTACCargg/DiEt/moMQmvnfkog==
 
+cssstyle@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/cssstyle/-/cssstyle-1.2.1.tgz#3aceb2759eaf514ac1a21628d723d6043a819495"
+  integrity sha512-7DYm8qe+gPx/h77QlCyFmX80+fGaE/6A/Ekl0zaszYOubvySO2saYFdQ78P29D0UsULxFKCetDGNaNRUdSF+2A==
+  dependencies:
+    cssom "0.3.x"
+
 cssstyle@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/cssstyle/-/cssstyle-1.1.1.tgz#18b038a9c44d65f7a8e428a653b9f6fe42faf5fb"
@@ -3513,6 +3608,11 @@ destroy@^1.0.4, destroy@~1.0.4:
   resolved "https://registry.yarnpkg.com/destroy/-/destroy-1.0.4.tgz#978857442c44749e4206613e37946205826abd80"
   integrity sha1-l4hXRCxEdJ5CBmE+N5RiBYJqvYA=
 
+details-element-polyfill@2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/details-element-polyfill/-/details-element-polyfill-2.2.0.tgz#1c0bb65372c20f622e90974b9694ae204d4c8d8c"
+  integrity sha512-Sjg+A4q3Mrn2JKQu58zsreuHqAb4M0qe4eK5ZQAIBuch9i8nx6MlKWCxx0z8s59MMen9I4WXavzW5z+BnkIC0A==
+
 detect-indent@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/detect-indent/-/detect-indent-4.0.0.tgz#f76d064352cdf43a1cb6ce619c4ee3a9475de208"
@@ -4196,6 +4296,15 @@ extend@3, extend@^3.0.0, extend@^3.0.1, extend@^3.0.2, extend@~3.0.2:
   resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.2.tgz#f8b1136b4071fbd8eb140aff858b1019ec2915fa"
   integrity sha512-fjquC59cD7CyW6urNXK0FBufkZcoiGG80wTuPujX590cB5Ttln20E2UB4S/WARVqhXffZl2LNgS+gQdPIIim/g==
 
+external-editor@^2.0.4:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/external-editor/-/external-editor-2.2.0.tgz#045511cfd8d133f3846673d1047c154e214ad3d5"
+  integrity sha512-bSn6gvGxKt+b7+6TKEv1ZycHleA7aHhRHyAqJyp5pbUFuYYNIzpZnQDk7AsYckyWdEnTeAnay0aCy2aV6iTk9A==
+  dependencies:
+    chardet "^0.4.0"
+    iconv-lite "^0.4.17"
+    tmp "^0.0.33"
+
 extglob@^0.3.1:
   version "0.3.2"
   resolved "https://registry.yarnpkg.com/extglob/-/extglob-0.3.2.tgz#2e18ff3d2f49ab2765cec9023f011daa8d8349a1"
@@ -4294,6 +4403,13 @@ figgy-pudding@^3.0.0, figgy-pudding@^3.1.0, figgy-pudding@^3.4.1, figgy-pudding@
   resolved "https://registry.yarnpkg.com/figgy-pudding/-/figgy-pudding-3.5.1.tgz#862470112901c727a0e495a80744bd5baa1d6790"
   integrity sha512-vNKxJHTEKNThjfrdJwHc7brvM6eVevuO5nTj6ez8ZQ1qbXTvGthucRF7S4vf2cr71QVnT70V34v0S1DyQsti0w==
 
+figures@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/figures/-/figures-2.0.0.tgz#3ab1a2d2a62c8bfb431a0c94cb797a2fce27c962"
+  integrity sha1-OrGi0qYsi/tDGgyUy3l6L84nyWI=
+  dependencies:
+    escape-string-regexp "^1.0.5"
+
 file-contents@^0.2.4:
   version "0.2.4"
   resolved "https://registry.yarnpkg.com/file-contents/-/file-contents-0.2.4.tgz#0506f7b8eff62afa45ae45da4df9e9d47df453cb"
@@ -5187,6 +5303,11 @@ has-binary2@~1.0.2:
   dependencies:
     isarray "2.0.1"
 
+has-color@~0.1.0:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/has-color/-/has-color-0.1.7.tgz#67144a5260c34fc3cca677d041daf52fe7b78b2f"
+  integrity sha1-ZxRKUmDDT8PMpnfQQdr1L+e3iy8=
+
 has-cors@1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/has-cors/-/has-cors-1.1.0.tgz#5e474793f7ea9843d1bb99c23eef49ff126fff39"
@@ -5396,6 +5517,11 @@ http-errors@^1.6.3, http-errors@~1.7.1:
     statuses ">= 1.5.0 < 2"
     toidentifier "1.0.0"
 
+http-link-header@^0.8.0:
+  version "0.8.0"
+  resolved "https://registry.yarnpkg.com/http-link-header/-/http-link-header-0.8.0.tgz#a22b41a0c9b1e2d8fac1bf1b697c6bd532d5f5e4"
+  integrity sha1-oitBoMmx4tj6wb8baXxr1TLV9eQ=
+
 http-parser-js@>=0.4.0:
   version "0.5.0"
   resolved "https://registry.yarnpkg.com/http-parser-js/-/http-parser-js-0.5.0.tgz#d65edbede84349d0dc30320815a15d39cc3cbbd8"
@@ -5458,7 +5584,7 @@ iconv-lite@0.4.23:
   dependencies:
     safer-buffer ">= 2.1.2 < 3"
 
-iconv-lite@0.4.24, iconv-lite@^0.4.24, iconv-lite@^0.4.4, iconv-lite@~0.4.13:
+iconv-lite@0.4.24, iconv-lite@^0.4.17, iconv-lite@^0.4.24, iconv-lite@^0.4.4, iconv-lite@~0.4.13:
   version "0.4.24"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.24.tgz#2022b4b25fbddc21d2f524974a474aafe733908b"
   integrity sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==
@@ -5492,6 +5618,11 @@ ignore-walk@^3.0.1:
   dependencies:
     minimatch "^3.0.4"
 
+image-ssim@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/image-ssim/-/image-ssim-0.2.0.tgz#83b42c7a2e6e4b85505477fe6917f5dbc56420e5"
+  integrity sha1-g7Qsei5uS4VQVHf+aRf128VkIOU=
+
 import-lazy@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/import-lazy/-/import-lazy-2.1.0.tgz#05698e3d45c88e8d7e9d92cb0584e77f096f3e43"
@@ -5562,6 +5693,43 @@ init-package-json@^1.10.3:
     validate-npm-package-license "^3.0.1"
     validate-npm-package-name "^3.0.0"
 
+inquirer@^3.3.0:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-3.3.0.tgz#9dd2f2ad765dcab1ff0443b491442a20ba227dc9"
+  integrity sha512-h+xtnyk4EwKvFWHrUYsWErEVR+igKtLdchu+o0Z1RL7VU/jVMFbYir2bp6bAj8efFNxWqHX0dIss6fJQ+/+qeQ==
+  dependencies:
+    ansi-escapes "^3.0.0"
+    chalk "^2.0.0"
+    cli-cursor "^2.1.0"
+    cli-width "^2.0.0"
+    external-editor "^2.0.4"
+    figures "^2.0.0"
+    lodash "^4.3.0"
+    mute-stream "0.0.7"
+    run-async "^2.2.0"
+    rx-lite "^4.0.8"
+    rx-lite-aggregates "^4.0.8"
+    string-width "^2.1.0"
+    strip-ansi "^4.0.0"
+    through "^2.3.6"
+
+intl-messageformat-parser@1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/intl-messageformat-parser/-/intl-messageformat-parser-1.4.0.tgz#b43d45a97468cadbe44331d74bb1e8dea44fc075"
+  integrity sha1-tD1FqXRoytvkQzHXS7Ho3qRPwHU=
+
+intl-messageformat-parser@^1.4.0:
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/intl-messageformat-parser/-/intl-messageformat-parser-1.5.1.tgz#b15a93dc8d4ba77ff60fd0443ed4794403b1e132"
+  integrity sha512-G9/w2k2MRG2OvzVc/zOfBQbZJT590TiUI6/4wUshvzV1Q9rA5DDC2mWFz5UtiWT4Z7U3nunaba3FWri77KXCnA==
+
+intl-messageformat@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/intl-messageformat/-/intl-messageformat-2.2.0.tgz#345bcd46de630b7683330c2e52177ff5eab484fc"
+  integrity sha1-NFvNRt5jC3aDMwwuUhd/9eq0hPw=
+  dependencies:
+    intl-messageformat-parser "1.4.0"
+
 into-stream@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/into-stream/-/into-stream-3.1.0.tgz#96fb0a936c12babd6ff1752a17d05616abd094c6"
@@ -5911,7 +6079,7 @@ is-primitive@^2.0.0:
   resolved "https://registry.yarnpkg.com/is-primitive/-/is-primitive-2.0.0.tgz#207bab91638499c07b2adf240a41a87210034575"
   integrity sha1-IHurkWOEmcB7Kt8kCkGochADRXU=
 
-is-promise@^2.0.0:
+is-promise@^2.0.0, is-promise@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/is-promise/-/is-promise-2.1.0.tgz#79a2a9ece7f096e80f36d2b2f3bc16c1ff4bf3fa"
   integrity sha1-eaKp7OfwlugPNtKy87wWwf9L8/o=
@@ -6525,11 +6693,21 @@ join-component@^1.1.0:
   resolved "https://registry.yarnpkg.com/join-component/-/join-component-1.1.0.tgz#b8417b750661a392bee2c2537c68b2a9d4977cd5"
   integrity sha1-uEF7dQZho5K+4sJTfGiyqdSXfNU=
 
+jpeg-js@0.1.2, jpeg-js@^0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/jpeg-js/-/jpeg-js-0.1.2.tgz#135b992c0575c985cfa0f494a3227ed238583ece"
+  integrity sha1-E1uZLAV1yYXPoPSUoyJ+0jhYPs4=
+
 jpeg-js@^0.3.4:
   version "0.3.4"
   resolved "https://registry.yarnpkg.com/jpeg-js/-/jpeg-js-0.3.4.tgz#dc2ba501ee3d58b7bb893c5d1fab47294917e7e7"
   integrity sha512-6IzjQxvnlT8UlklNmDXIJMWxijULjqGrzgqc0OG7YadZdvm7KPQ1j0ehmQQHckgEWOfgpptzcnWgESovxudpTA==
 
+js-library-detector@^5.4.0:
+  version "5.4.0"
+  resolved "https://registry.yarnpkg.com/js-library-detector/-/js-library-detector-5.4.0.tgz#d1b08dfbdc3886258f888bd441801ef9e5b69567"
+  integrity sha512-lSTEC9Q3L/cXOhYIilW3GH/v4tOnPIN40NTIBHRcn2vxTwGhMyySQTQpJ0W68ISGzOgvwVe7KCfQ9PJi6MsOIw==
+
 js-stringify@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/js-stringify/-/js-stringify-1.0.2.tgz#1736fddfd9724f28a3682adc6230ae7e4e9679db"
@@ -6668,6 +6846,24 @@ jsonify@~0.0.0:
   resolved "https://registry.yarnpkg.com/jsonify/-/jsonify-0.0.0.tgz#2c74b6ee41d93ca51b7b5aaee8f503631d252a73"
   integrity sha1-LHS27kHZPKUbe1qu6PUDYx0lKnM=
 
+jsonld@^1.5.0:
+  version "1.6.1"
+  resolved "https://registry.yarnpkg.com/jsonld/-/jsonld-1.6.1.tgz#9db5d2a38ac26a118dbc5fae5dbefc3f22780ce2"
+  integrity sha512-4J5ilGTk+rAvAChbADruqFLcZ52b0aoMLL7xtyCVEmoIbyaPtwO4rOlQ/VczqhcrDvzxHflpDBdVi37LpALpXg==
+  dependencies:
+    rdf-canonize "^1.0.2"
+    request "^2.88.0"
+    semver "^5.6.0"
+    xmldom "0.1.19"
+
+jsonlint-mod@^1.7.4:
+  version "1.7.4"
+  resolved "https://registry.yarnpkg.com/jsonlint-mod/-/jsonlint-mod-1.7.4.tgz#310390e1a6a85cef99f45f200e662ef23b48f7a6"
+  integrity sha512-FYOkwHqiuBbdVCHgXYlmtL+iUOz9AxCgjotzXl+edI0Hc1km1qK6TrBEAyPpO+5R0/IX3XENRp66mfob4jwxow==
+  dependencies:
+    JSV ">= 4.0.x"
+    nomnom ">= 1.5.x"
+
 jsonparse@^1.2.0:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/jsonparse/-/jsonparse-1.3.1.tgz#3f4dae4a91fac315f71062f8521cc239f1366280"
@@ -7111,7 +7307,7 @@ libnpx@^10.2.0:
     y18n "^4.0.0"
     yargs "^11.0.0"
 
-lighthouse-logger@^1.0.0:
+lighthouse-logger@^1.0.0, lighthouse-logger@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/lighthouse-logger/-/lighthouse-logger-1.2.0.tgz#b76d56935e9c137e86a04741f6bb9b2776e886ca"
   integrity sha512-wzUvdIeJZhRsG6gpZfmSCfysaxNEr43i+QT+Hie94wvHDKFLi4n7C2GqZ4sTC+PH5b5iktmXJvU87rWvhP3lHw==
@@ -7119,6 +7315,41 @@ lighthouse-logger@^1.0.0:
     debug "^2.6.8"
     marky "^1.2.0"
 
+lighthouse@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/lighthouse/-/lighthouse-5.0.0.tgz#bca0f2a3ca36877d44bef5ba6478b135820d1cfb"
+  integrity sha512-s9S2ZujnAYF+F5EqKKGL72H1PQ1tPf7YxEl79LmvF9QHXElrITjQfYgi+8ZmHrNrCkKra5aKPzKRN3IIfF5Q9w==
+  dependencies:
+    axe-core "3.2.2"
+    chrome-launcher "^0.10.7"
+    configstore "^3.1.1"
+    cssstyle "1.2.1"
+    details-element-polyfill "2.2.0"
+    http-link-header "^0.8.0"
+    inquirer "^3.3.0"
+    intl-messageformat "^2.2.0"
+    intl-messageformat-parser "^1.4.0"
+    jpeg-js "0.1.2"
+    js-library-detector "^5.4.0"
+    jsonld "^1.5.0"
+    jsonlint-mod "^1.7.4"
+    lighthouse-logger "^1.2.0"
+    lodash.isequal "^4.5.0"
+    lookup-closest-locale "6.0.4"
+    metaviewport-parser "0.2.0"
+    mkdirp "0.5.1"
+    opn "4.0.2"
+    parse-cache-control "1.0.1"
+    raven "^2.2.1"
+    rimraf "^2.6.1"
+    robots-parser "^2.0.1"
+    semver "^5.3.0"
+    speedline-core "1.4.2"
+    update-notifier "^2.5.0"
+    ws "3.3.2"
+    yargs "3.32.0"
+    yargs-parser "7.0.0"
+
 limiter@^1.1.0:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/limiter/-/limiter-1.1.3.tgz#32e2eb55b2324076943e5d04c1185ffb387968ef"
@@ -7284,6 +7515,11 @@ lodash.isboolean@^3.0.3:
   resolved "https://registry.yarnpkg.com/lodash.isboolean/-/lodash.isboolean-3.0.3.tgz#6c2e171db2a257cd96802fd43b01b20d5f5870f6"
   integrity sha1-bC4XHbKiV82WgC/UOwGyDV9YcPY=
 
+lodash.isequal@^4.5.0:
+  version "4.5.0"
+  resolved "https://registry.yarnpkg.com/lodash.isequal/-/lodash.isequal-4.5.0.tgz#415c4478f2bcc30120c22ce10ed3226f7d3e18e0"
+  integrity sha1-QVxEePK8wwEgwizhDtMib30+GOA=
+
 lodash.isinteger@^4.0.4:
   version "4.0.4"
   resolved "https://registry.yarnpkg.com/lodash.isinteger/-/lodash.isinteger-4.0.4.tgz#619c0af3d03f8b04c31f5882840b77b11cd68343"
@@ -7349,7 +7585,7 @@ lodash.without@~4.4.0:
   resolved "https://registry.yarnpkg.com/lodash.without/-/lodash.without-4.4.0.tgz#3cd4574a00b67bae373a94b748772640507b7aac"
   integrity sha1-PNRXSgC2e643OpS3SHcmQFB7eqw=
 
-lodash@^4.13.1, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.4, lodash@^4.17.5:
+lodash@^4.13.1, lodash@^4.15.0, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0:
   version "4.17.11"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
   integrity sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==
@@ -7382,6 +7618,11 @@ longest@^1.0.1:
   resolved "https://registry.yarnpkg.com/longest/-/longest-1.0.1.tgz#30a0b2da38f73770e8294a0d22e6625ed77d0097"
   integrity sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=
 
+lookup-closest-locale@6.0.4:
+  version "6.0.4"
+  resolved "https://registry.yarnpkg.com/lookup-closest-locale/-/lookup-closest-locale-6.0.4.tgz#1279fed7546a601647bbc980f64423ee990a8590"
+  integrity sha512-bWoFbSGe6f1GvMGzj17LrwMX4FhDXDwZyH04ySVCPbtOJADcSRguZNKewoJ3Ful/MOxD/wRHvFPadk/kYZUbuQ==
+
 loopback-connector-remote@^3.0.0:
   version "3.4.0"
   resolved "https://registry.yarnpkg.com/loopback-connector-remote/-/loopback-connector-remote-3.4.0.tgz#413ce53a5a81bffeb3ff3f47e78a1bc45f80affa"
@@ -7763,6 +8004,11 @@ merge@^1.2.0:
   resolved "https://registry.yarnpkg.com/merge/-/merge-1.2.1.tgz#38bebf80c3220a8a487b6fcfb3941bb11720c145"
   integrity sha512-VjFo4P5Whtj4vsLzsYBu5ayHhoHJ0UqNm7ibvShmbmoz7tGi0vXaoJbGdB+GmDMLUdg8DpQXEIeVDAe8MaABvQ==
 
+metaviewport-parser@0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/metaviewport-parser/-/metaviewport-parser-0.2.0.tgz#535c3ce1ccf6223a5025fddc6a1c36505f7e7db1"
+  integrity sha1-U1w84cz2IjpQJf3cahw2UF9+fbE=
+
 methmeth@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/methmeth/-/methmeth-1.1.0.tgz#e80a26618e52f5c4222861bb748510bd10e29089"
@@ -8091,7 +8337,7 @@ msgpack5@^4.2.0:
     readable-stream "^2.3.6"
     safe-buffer "^5.1.2"
 
-mute-stream@~0.0.4:
+mute-stream@0.0.7, mute-stream@~0.0.4:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
   integrity sha1-MHXOk7whuPq0PhvE2n6BFe0ee6s=
@@ -8248,6 +8494,11 @@ node-forge@^0.7.4:
   resolved "https://registry.yarnpkg.com/node-forge/-/node-forge-0.7.6.tgz#fdf3b418aee1f94f0ef642cd63486c77ca9724ac"
   integrity sha512-sol30LUpz1jQFBjOKwbjxijiE3b6pjd74YwfD0fJOKPjF+fONKb2Yg8rYgS6+bK6VDl+/wfr4IYpC7jDzLUIfw==
 
+node-forge@^0.8.1:
+  version "0.8.2"
+  resolved "https://registry.yarnpkg.com/node-forge/-/node-forge-0.8.2.tgz#b4bcc59fb12ce77a8825fc6a783dfe3182499c5a"
+  integrity sha512-mXQ9GBq1N3uDCyV1pdSzgIguwgtVpM7f5/5J4ipz12PKWElmPpVWLDuWl8iXmhysr21+WmX/OJ5UKx82wjomgg==
+
 node-gyp@^3.6.2, node-gyp@^3.8.0:
   version "3.8.0"
   resolved "https://registry.yarnpkg.com/node-gyp/-/node-gyp-3.8.0.tgz#540304261c330e80d0d5edce253a68cb3964218c"
@@ -8359,6 +8610,14 @@ nodemailer@^4.0.1:
   resolved "https://registry.yarnpkg.com/nodemailer/-/nodemailer-4.7.0.tgz#4420e06abfffd77d0618f184ea49047db84f4ad8"
   integrity sha512-IludxDypFpYw4xpzKdMAozBSkzKHmNBvGanUREjJItgJ2NYcK/s8+PggVhj7c2yGFQykKsnnmv1+Aqo0ZfjHmw==
 
+"nomnom@>= 1.5.x":
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/nomnom/-/nomnom-1.8.1.tgz#2151f722472ba79e50a76fc125bb8c8f2e4dc2a7"
+  integrity sha1-IVH3Ikcrp55Qp2/BJbuMjy5Nwqc=
+  dependencies:
+    chalk "~0.4.0"
+    underscore "~1.6.0"
+
 noop-logger@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/noop-logger/-/noop-logger-0.1.1.tgz#94a2b1633c4f1317553007d8966fd0e841b6a4c2"
@@ -8943,6 +9202,13 @@ once@^1.3.0, once@^1.3.1, once@^1.3.2, once@^1.3.3, once@^1.4.0, once@~1.4.0:
   dependencies:
     wrappy "1"
 
+onetime@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/onetime/-/onetime-2.0.1.tgz#067428230fd67443b2794b22bba528b6867962d4"
+  integrity sha1-BnQoIw/WdEOyeUsiu6UotoZ5YtQ=
+  dependencies:
+    mimic-fn "^1.0.0"
+
 oniguruma@7.0.2:
   version "7.0.2"
   resolved "https://registry.yarnpkg.com/oniguruma/-/oniguruma-7.0.2.tgz#a5c922cf7066da1dbcc60f6385a90437a83f8d0b"
@@ -8960,6 +9226,14 @@ opener@^1.5.0, opener@^1.5.1:
   resolved "https://registry.yarnpkg.com/opener/-/opener-1.5.1.tgz#6d2f0e77f1a0af0032aca716c2c1fbb8e7e8abed"
   integrity sha512-goYSy5c2UXE4Ra1xixabeVh1guIX/ZV/YokJksb6q2lubWu6UbvPQ20p542/sFIll1nl8JnCyK9oBaOcCWXwvA==
 
+opn@4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/opn/-/opn-4.0.2.tgz#7abc22e644dff63b0a96d5ab7f2790c0f01abc95"
+  integrity sha1-erwi5kTf9jsKltWrfyeQwPAavJU=
+  dependencies:
+    object-assign "^4.0.1"
+    pinkie-promise "^2.0.0"
+
 optimist@^0.6.1, optimist@~0.6, optimist@~0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/optimist/-/optimist-0.6.1.tgz#da3ea74686fa21a19a111c326e90eb15a0196686"
@@ -9032,7 +9306,7 @@ os-locale@^3.0.1:
     lcid "^2.0.0"
     mem "^4.0.0"
 
-os-tmpdir@^1.0.0, os-tmpdir@^1.0.1:
+os-tmpdir@^1.0.0, os-tmpdir@^1.0.1, os-tmpdir@~1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
   integrity sha1-u+Z0BseaqFxc/sdm/lc0VV36EnQ=
@@ -9263,6 +9537,11 @@ parse-bmfont-xml@^1.1.4:
     xml-parse-from-string "^1.0.0"
     xml2js "^0.4.5"
 
+parse-cache-control@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/parse-cache-control/-/parse-cache-control-1.0.1.tgz#8eeab3e54fa56920fe16ba38f77fa21aacc2d74e"
+  integrity sha1-juqz5U+laSD+Fro493+iGqzC104=
+
 parse-glob@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/parse-glob/-/parse-glob-3.0.4.tgz#b2c376cfb11f35513badd173ef0bb6e3a388391c"
@@ -9452,6 +9731,16 @@ pause@0.0.1:
   resolved "https://registry.yarnpkg.com/pause/-/pause-0.0.1.tgz#1d408b3fdb76923b9543d96fb4c9dfd535d9cb5d"
   integrity sha1-HUCLP9t2kjuVQ9lvtMnf1TXZy10=
 
+pdf2json@^1.1.8:
+  version "1.1.8"
+  resolved "https://registry.yarnpkg.com/pdf2json/-/pdf2json-1.1.8.tgz#8f268a662ee417b1b1574c362f2caaeb3b7187da"
+  integrity sha512-ka7l/w+4FM5vdI8X9UihxqdTispanZ72ZKsFdghwpBaHcIhXeWCO0qs81P9modFZHf7s4znf0sxc5k6wk6L4Og==
+  dependencies:
+    async "^2.0.1"
+    lodash "^4.15.0"
+    optimist "^0.6.1"
+    xmldom "^0.1.22"
+
 pdfkit@^0.8.3:
   version "0.8.3"
   resolved "https://registry.yarnpkg.com/pdfkit/-/pdfkit-0.8.3.tgz#ec99a57fc55ca309726f856456da14418f5330e3"
@@ -10081,6 +10370,17 @@ range-parser@~1.2.0:
   resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.2.0.tgz#f49be6b487894ddc40dcc94a322f611092e00d5e"
   integrity sha1-9JvmtIeJTdxA3MlKMi9hEJLgDV4=
 
+raven@^2.2.1:
+  version "2.6.4"
+  resolved "https://registry.yarnpkg.com/raven/-/raven-2.6.4.tgz#458d4a380c8fbb59e0150c655625aaf60c167ea3"
+  integrity sha512-6PQdfC4+DQSFncowthLf+B6Hr0JpPsFBgTVYTAOq7tCmx/kR4SXbeawtPch20+3QfUcQDoJBLjWW1ybvZ4kXTw==
+  dependencies:
+    cookie "0.3.1"
+    md5 "^2.2.1"
+    stack-trace "0.0.10"
+    timed-out "4.0.1"
+    uuid "3.3.2"
+
 raw-body@2.3.3, raw-body@^2.2.0:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/raw-body/-/raw-body-2.3.3.tgz#1b324ece6b5706e153855bc1148c65bb7f6ea0c3"
@@ -10101,6 +10401,14 @@ rc@^1.0.1, rc@^1.1.6, rc@^1.2.7:
     minimist "^1.2.0"
     strip-json-comments "~2.0.1"
 
+rdf-canonize@^1.0.2:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/rdf-canonize/-/rdf-canonize-1.0.3.tgz#71dc56bb808a39d12e3ca17674c15f881cad648a"
+  integrity sha512-piLMOB5Q6LJSVx2XzmdpHktYVb8TmVTy8coXJBFtdkcMC96DknZOuzpAYqCWx2ERZX7xEW+mMi8/wDuMJS/95w==
+  dependencies:
+    node-forge "^0.8.1"
+    semver "^5.6.0"
+
 react-dom@^16.6.3:
   version "16.6.3"
   resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-16.6.3.tgz#8fa7ba6883c85211b8da2d0efeffc9d3825cccc0"
@@ -10525,6 +10833,14 @@ rest-facade@^1.10.1:
     superagent "^3.8.0"
     superagent-proxy "^1.0.2"
 
+restore-cursor@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/restore-cursor/-/restore-cursor-2.0.0.tgz#9f7ee287f82fd326d4fd162923d62129eee0dfaf"
+  integrity sha1-n37ih/gv0ybU/RYpI9YhKe7g368=
+  dependencies:
+    onetime "^2.0.0"
+    signal-exit "^3.0.2"
+
 restructure@^0.5.3:
   version "0.5.4"
   resolved "https://registry.yarnpkg.com/restructure/-/restructure-0.5.4.tgz#f54e7dd563590fb34fd6bf55876109aeccb28de8"
@@ -10601,6 +10917,11 @@ ripemd160@^2.0.0, ripemd160@^2.0.1:
     hash-base "^3.0.0"
     inherits "^2.0.1"
 
+robots-parser@^2.0.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/robots-parser/-/robots-parser-2.1.1.tgz#41b289cf44a6aa136dc62be0085adca954573ab0"
+  integrity sha512-6yWEYSdhK3bAEcYY0In3wgSBK70BiQoJArzdjZKCP/35b3gKIYu5Lc0qQqsoxjoLVebVoJiKK4VWGc5+oxvWBQ==
+
 rootpath@0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/rootpath/-/rootpath-0.1.2.tgz#5b379a87dca906e9b91d690a599439bef267ea6b"
@@ -10611,6 +10932,13 @@ rsvp@^3.3.3:
   resolved "https://registry.yarnpkg.com/rsvp/-/rsvp-3.6.2.tgz#2e96491599a96cde1b515d5674a8f7a91452926a"
   integrity sha512-OfWGQTb9vnwRjwtA2QwpG2ICclHC3pgXZO5xt8H2EfgDquO0qVdSb5T88L4qJVAEugbS56pAuV4XZM58UX8ulw==
 
+run-async@^2.2.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/run-async/-/run-async-2.3.0.tgz#0371ab4ae0bdd720d4166d7dfda64ff7a445a6c0"
+  integrity sha1-A3GrSuC91yDUFm19/aZP96RFpsA=
+  dependencies:
+    is-promise "^2.1.0"
+
 run-queue@^1.0.0, run-queue@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/run-queue/-/run-queue-1.0.3.tgz#e848396f057d223f24386924618e25694161ec47"
@@ -10618,6 +10946,18 @@ run-queue@^1.0.0, run-queue@^1.0.3:
   dependencies:
     aproba "^1.1.1"
 
+rx-lite-aggregates@^4.0.8:
+  version "4.0.8"
+  resolved "https://registry.yarnpkg.com/rx-lite-aggregates/-/rx-lite-aggregates-4.0.8.tgz#753b87a89a11c95467c4ac1626c4efc4e05c67be"
+  integrity sha1-dTuHqJoRyVRnxKwWJsTvxOBcZ74=
+  dependencies:
+    rx-lite "*"
+
+rx-lite@*, rx-lite@^4.0.8:
+  version "4.0.8"
+  resolved "https://registry.yarnpkg.com/rx-lite/-/rx-lite-4.0.8.tgz#0b1e11af8bc44836f04a6407e92da42467b79444"
+  integrity sha1-Cx4Rr4vESDbwSmQH6S2kJGe3lEQ=
+
 rxjs@^6.3.3:
   version "6.3.3"
   resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-6.3.3.tgz#3c6a7fa420e844a81390fb1158a9ec614f4bad55"
@@ -11230,6 +11570,15 @@ spdx-license-ids@^3.0.0:
   resolved "https://registry.yarnpkg.com/spdx-license-ids/-/spdx-license-ids-3.0.2.tgz#a59efc09784c2a5bada13cfeaf5c75dd214044d2"
   integrity sha512-qky9CVt0lVIECkEsYbNILVnPvycuEBkXoMFLRWsREkomQLevYhtRKC+R91a5TOAQ3bCMjikRwhyaRqj1VYatYg==
 
+speedline-core@1.4.2:
+  version "1.4.2"
+  resolved "https://registry.yarnpkg.com/speedline-core/-/speedline-core-1.4.2.tgz#bb061444a218d67b4cd52f63a262386197b90c8a"
+  integrity sha512-9/5CApkKKl6bS6jJ2D0DQllwz/1xq3cyJCR6DLgAQnkj5djCuq8NbflEdD2TI01p8qzS9qaKjzxM9cHT11ezmg==
+  dependencies:
+    "@types/node" "*"
+    image-ssim "^0.2.0"
+    jpeg-js "^0.1.2"
+
 split-array-stream@^1.0.0:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/split-array-stream/-/split-array-stream-1.0.3.tgz#d2b75a8e5e0d824d52fdec8b8225839dc2e35dfa"
@@ -11487,7 +11836,7 @@ string-width@^1.0.1:
     is-fullwidth-code-point "^1.0.0"
     strip-ansi "^3.0.0"
 
-"string-width@^1.0.2 || 2", string-width@^2.0.0, string-width@^2.1.1, string-width@~2.1.1:
+"string-width@^1.0.2 || 2", string-width@^2.0.0, string-width@^2.1.0, string-width@^2.1.1, string-width@~2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-2.1.1.tgz#ab93f27a8dc13d28cac815c462143a6d9012ae9e"
   integrity sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==
@@ -11533,6 +11882,11 @@ strip-ansi@^4.0.0:
   dependencies:
     ansi-regex "^3.0.0"
 
+strip-ansi@~0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-0.1.1.tgz#39e8a98d044d150660abe4a6808acf70bb7bc991"
+  integrity sha1-OeipjQRNFQZgq+SmgIrPcLt7yZE=
+
 strip-bom-buffer@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/strip-bom-buffer/-/strip-bom-buffer-0.1.1.tgz#ca3ddc4919c13f9fddf30b1dff100a9835248b4d"
@@ -11864,7 +12218,7 @@ through2@^2.0.0, through2@^2.0.1, through2@^2.0.2, through2@^2.0.3, through2@~2.
     readable-stream "~2.3.6"
     xtend "~4.0.1"
 
-through@2, "through@>=2.2.7 <3", through@~2.3.1, through@~2.3.4:
+through@2, "through@>=2.2.7 <3", through@^2.3.6, through@~2.3.1, through@~2.3.4:
   version "2.3.8"
   resolved "https://registry.yarnpkg.com/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
   integrity sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU=
@@ -11879,7 +12233,7 @@ thunkify@^2.1.2:
   resolved "https://registry.yarnpkg.com/thunkify/-/thunkify-2.1.2.tgz#faa0e9d230c51acc95ca13a361ac05ca7e04553d"
   integrity sha1-+qDp0jDFGsyVyhOjYawFyn4EVT0=
 
-timed-out@^4.0.0, timed-out@^4.0.1:
+timed-out@4.0.1, timed-out@^4.0.0, timed-out@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/timed-out/-/timed-out-4.0.1.tgz#f32eacac5a175bea25d7fab565ab3ed8741ef56f"
   integrity sha1-8y6srFoXW+ol1/q1Zas+2HQe9W8=
@@ -11922,6 +12276,13 @@ title-case@^1.1.0:
     sentence-case "^1.1.1"
     upper-case "^1.0.3"
 
+tmp@^0.0.33:
+  version "0.0.33"
+  resolved "https://registry.yarnpkg.com/tmp/-/tmp-0.0.33.tgz#6d34335889768d21b2bcda0aa277ced3b1bfadf9"
+  integrity sha512-jRCJlojKnZ3addtTOjdIqoRuPEKBvNXcGYqzO6zWZX8KfKEpnGY5jfggJQ3EjKuu8D4bJRr0y+cYJFmYbImXGw==
+  dependencies:
+    os-tmpdir "~1.0.2"
+
 tmpl@1.0.x:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/tmpl/-/tmpl-1.0.4.tgz#23640dd7b42d00433911140820e5cf440e521dd1"
@@ -12224,6 +12585,11 @@ underscore.string@^3.0.3:
     sprintf-js "^1.0.3"
     util-deprecate "^1.0.2"
 
+underscore@~1.6.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.6.0.tgz#8b38b10cacdef63337b8b24e4ff86d45aea529a8"
+  integrity sha1-izixDKze9jM3uLJOT/htRa6lKag=
+
 underscore@~1.7.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.7.0.tgz#6bbaf0877500d36be34ecaa584e0db9fef035209"
@@ -12792,6 +13158,15 @@ write-file-atomic@^2.4.2:
     imurmurhash "^0.1.4"
     signal-exit "^3.0.2"
 
+ws@3.3.2:
+  version "3.3.2"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-3.3.2.tgz#96c1d08b3fefda1d5c1e33700d3bfaa9be2d5608"
+  integrity sha512-t+WGpsNxhMR4v6EClXS8r8km5ZljKJzyGhJf7goJz9k5Ye3+b5Bvno5rjqPuIBn5mnn5GBb7o8IrIWHxX1qOLQ==
+  dependencies:
+    async-limiter "~1.0.0"
+    safe-buffer "~5.1.0"
+    ultron "~1.1.0"
+
 ws@3.3.x, ws@^3.2.0:
   version "3.3.3"
   resolved "https://registry.yarnpkg.com/ws/-/ws-3.3.3.tgz#f1cf84fe2d5e901ebce94efaece785f187a228f2"
@@ -12877,6 +13252,16 @@ xmlcreate@^1.0.1:
   resolved "https://registry.yarnpkg.com/xmlcreate/-/xmlcreate-1.0.2.tgz#fa6bf762a60a413fb3dd8f4b03c5b269238d308f"
   integrity sha1-+mv3YqYKQT+z3Y9LA8WyaSONMI8=
 
+xmldom@0.1.19:
+  version "0.1.19"
+  resolved "https://registry.yarnpkg.com/xmldom/-/xmldom-0.1.19.tgz#631fc07776efd84118bf25171b37ed4d075a0abc"
+  integrity sha1-Yx/Ad3bv2EEYvyUXGzftTQdaCrw=
+
+xmldom@^0.1.22:
+  version "0.1.27"
+  resolved "https://registry.yarnpkg.com/xmldom/-/xmldom-0.1.27.tgz#d501f97b3bdb403af8ef9ecc20573187aadac0e9"
+  integrity sha1-1QH5ezvbQDr4757MIFcxh6rawOk=
+
 xmlhttprequest-ssl@~1.5.4:
   version "1.5.5"
   resolved "https://registry.yarnpkg.com/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.5.tgz#c2876b06168aadc40e57d97e81191ac8f4398b3e"
@@ -12930,6 +13315,13 @@ yamljs@^0.3.0:
     argparse "^1.0.7"
     glob "^7.0.5"
 
+yargs-parser@7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-7.0.0.tgz#8d0ac42f16ea55debd332caf4c4038b3e3f5dfd9"
+  integrity sha1-jQrELxbqVd69MyyvTEA4s+P139k=
+  dependencies:
+    camelcase "^4.1.0"
+
 yargs-parser@^2.4.1:
   version "2.4.1"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-2.4.1.tgz#85568de3cf150ff49fa51825f03a8c880ddcc5c4"
@@ -12945,6 +13337,19 @@ yargs-parser@^9.0.2:
   dependencies:
     camelcase "^4.1.0"
 
+yargs@3.32.0, yargs@^3.10.0, yargs@^3.23.0:
+  version "3.32.0"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-3.32.0.tgz#03088e9ebf9e756b69751611d2a5ef591482c995"
+  integrity sha1-AwiOnr+edWtpdRYR0qXvWRSCyZU=
+  dependencies:
+    camelcase "^2.0.1"
+    cliui "^3.0.3"
+    decamelize "^1.1.1"
+    os-locale "^1.4.0"
+    string-width "^1.0.1"
+    window-size "^0.1.4"
+    y18n "^3.2.0"
+
 yargs@^11.0.0:
   version "11.1.0"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-11.1.0.tgz#90b869934ed6e871115ea2ff58b03f4724ed2d77"
@@ -12963,19 +13368,6 @@ yargs@^11.0.0:
     y18n "^3.2.1"
     yargs-parser "^9.0.2"
 
-yargs@^3.10.0, yargs@^3.23.0:
-  version "3.32.0"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-3.32.0.tgz#03088e9ebf9e756b69751611d2a5ef591482c995"
-  integrity sha1-AwiOnr+edWtpdRYR0qXvWRSCyZU=
-  dependencies:
-    camelcase "^2.0.1"
-    cliui "^3.0.3"
-    decamelize "^1.1.1"
-    os-locale "^1.4.0"
-    string-width "^1.0.1"
-    window-size "^0.1.4"
-    y18n "^3.2.0"
-
 yargs@^4.7.1:
   version "4.8.1"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-4.8.1.tgz#c0c42924ca4aaa6b0e6da1739dfb216439f9ddc0"