diff --git a/packages/@vue/cli-service/lib/config/terserOptions.js b/packages/@vue/cli-service/lib/config/terserOptions.js
index 5e51763c66..f4eeb87264 100644
--- a/packages/@vue/cli-service/lib/config/terserOptions.js
+++ b/packages/@vue/cli-service/lib/config/terserOptions.js
@@ -37,5 +37,6 @@ module.exports = options => ({
   },
   sourceMap: options.productionSourceMap,
   cache: true,
-  parallel: options.parallel
+  parallel: options.parallel,
+  extractComments: false
 })
diff --git a/packages/@vue/cli-service/package.json b/packages/@vue/cli-service/package.json
index 733546fa46..b84d89c8be 100644
--- a/packages/@vue/cli-service/package.json
+++ b/packages/@vue/cli-service/package.json
@@ -69,7 +69,7 @@
     "source-map-url": "^0.4.0",
     "ssri": "^6.0.1",
     "string.prototype.padend": "^3.0.0",
-    "terser-webpack-plugin": "^1.3.0",
+    "terser-webpack-plugin": "^2.1.2",
     "thread-loader": "^2.1.2",
     "url-loader": "^2.1.0",
     "vue-loader": "^15.7.0",
diff --git a/yarn.lock b/yarn.lock
index 778debe62b..6744055db4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2716,33 +2716,6 @@
     "@vue/babel-plugin-transform-vue-jsx" "^1.0.0"
     camelcase "^5.0.0"
 
-"@vue/cli-plugin-pwa@*":
-  version "3.12.0"
-  resolved "https://registry.npmjs.org/@vue/cli-plugin-pwa/-/cli-plugin-pwa-3.12.0.tgz#cb4821bed6d409e452ba6917eae639f185c16dea"
-  integrity sha512-wS+7pPiU+KxO/mafoASPccN62BbqMWaSGlxfS5zCHG4lvAe3tSmFVhV2R54V5pDC3BRDUxod0Yn0mXlbC2b14w==
-  dependencies:
-    "@vue/cli-shared-utils" "^3.12.0"
-    webpack "^4.0.0"
-    workbox-webpack-plugin "^3.6.3"
-
-"@vue/cli-shared-utils@^3.12.0":
-  version "3.12.0"
-  resolved "https://registry.npmjs.org/@vue/cli-shared-utils/-/cli-shared-utils-3.12.0.tgz#48fcd786129cf02278b9c91f2c3491199f777248"
-  integrity sha512-8XEn4s0Cc+98eqdGSQJSrzSKIsf0FMDmfDvgXjT7I2qZWs9e0toOAm7RooypRSad2FhwxzY2bLPgCkNPDJN/jQ==
-  dependencies:
-    "@hapi/joi" "^15.0.1"
-    chalk "^2.4.1"
-    execa "^1.0.0"
-    launch-editor "^2.2.1"
-    lru-cache "^5.1.1"
-    node-ipc "^9.1.1"
-    open "^6.3.0"
-    ora "^3.4.0"
-    request "^2.87.0"
-    request-promise-native "^1.0.7"
-    semver "^6.0.0"
-    string.prototype.padstart "^3.0.0"
-
 "@vue/component-compiler-utils@^3.0.0":
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/@vue/component-compiler-utils/-/component-compiler-utils-3.0.0.tgz#d16fa26b836c06df5baaeb45f3d80afc47e35634"
@@ -4811,6 +4784,30 @@ cacache@^12.0.0, cacache@^12.0.2:
     unique-filename "^1.1.1"
     y18n "^4.0.0"
 
+cacache@^13.0.1:
+  version "13.0.1"
+  resolved "https://registry.npmjs.org/cacache/-/cacache-13.0.1.tgz#a8000c21697089082f85287a1aec6e382024a71c"
+  integrity sha512-5ZvAxd05HDDU+y9BVvcqYu2LLXmPnQ0hW62h32g4xBTgL/MppR4/04NHfj/ycM2y6lmTnbw6HVi+1eN0Psba6w==
+  dependencies:
+    chownr "^1.1.2"
+    figgy-pudding "^3.5.1"
+    fs-minipass "^2.0.0"
+    glob "^7.1.4"
+    graceful-fs "^4.2.2"
+    infer-owner "^1.0.4"
+    lru-cache "^5.1.1"
+    minipass "^3.0.0"
+    minipass-collect "^1.0.2"
+    minipass-flush "^1.0.5"
+    minipass-pipeline "^1.2.2"
+    mkdirp "^0.5.1"
+    move-concurrently "^1.0.1"
+    p-map "^3.0.0"
+    promise-inflight "^1.0.1"
+    rimraf "^2.7.1"
+    ssri "^7.0.0"
+    unique-filename "^1.1.1"
+
 cache-base@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/cache-base/-/cache-base-1.0.1.tgz#0a7f46416831c8b662ee36fe4e7c59d76f666ab2"
@@ -5116,6 +5113,11 @@ chownr@^1.0.1, chownr@^1.1.1:
   resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.1.2.tgz#a18f1e0b269c8a6a5d3c86eb298beb14c3dd7bf6"
   integrity sha512-GkfeAQh+QNy3wquu9oIZr6SS5x7wGdSgNQvD10X3r+AZr1Oys22HW8kAmDMvNg2+Dm0TeGaEuO8gFwdBXxwO8A==
 
+chownr@^1.1.2:
+  version "1.1.3"
+  resolved "https://registry.npmjs.org/chownr/-/chownr-1.1.3.tgz#42d837d5239688d55f303003a508230fa6727142"
+  integrity sha512-i70fVHhmV3DtTl6nqvZOnIjbY0Pe4kAUjwHj8z0zAdgBtYrJyYwLKCCuRBQ5ppkyL0AkN7HKRnETdmdp1zqNXw==
+
 chrome-trace-event@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/chrome-trace-event/-/chrome-trace-event-1.0.2.tgz#234090ee97c7d4ad1a2c4beae27505deffc608a4"
@@ -5520,7 +5522,7 @@ commander@~2.8.1:
   dependencies:
     graceful-readlink ">= 1.0.0"
 
-common-tags@1.8.0, common-tags@^1.4.0, common-tags@^1.5.1, common-tags@^1.8.0:
+common-tags@1.8.0, common-tags@^1.5.1, common-tags@^1.8.0:
   version "1.8.0"
   resolved "https://registry.yarnpkg.com/common-tags/-/common-tags-1.8.0.tgz#8e3153e542d4a39e9b10554434afaaf98956a937"
   integrity sha512-6P6g0uetGpW/sdyUy/iQQCbFF0kWVMSIVSyYz7Zgjcgh8mgw8PQzDNZeyZ5DQ2gM7LBoZPHmnjz8rUthkBG5tw==
@@ -7306,7 +7308,7 @@ eslint-plugin-vue-libs@^4.0.0:
     babel-eslint "^10.0.1"
     eslint-plugin-vue "^5.1.0"
 
-eslint-plugin-vue@^5.0.0, eslint-plugin-vue@^5.1.0, eslint-plugin-vue@^5.2.2:
+eslint-plugin-vue@^5.1.0, eslint-plugin-vue@^5.2.2:
   version "5.2.3"
   resolved "https://registry.yarnpkg.com/eslint-plugin-vue/-/eslint-plugin-vue-5.2.3.tgz#3ee7597d823b5478804b2feba9863b1b74273961"
   integrity sha512-mGwMqbbJf0+VvpGR5Lllq0PMxvTdrZ/ZPjmhkacrCHbubJeJOt+T6E3HUzAifa2Mxi7RSdJfC9HFpOeSYVMMIw==
@@ -8279,6 +8281,13 @@ fs-minipass@^1.2.5:
   dependencies:
     minipass "^2.2.1"
 
+fs-minipass@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.npmjs.org/fs-minipass/-/fs-minipass-2.0.0.tgz#a6415edab02fae4b9e9230bc87ee2e4472003cd1"
+  integrity sha512-40Qz+LFXmd9tzYVnnBmZvFfvAADfUA14TXPK1s7IfElJTIZ97rA8w4Kin7Wt5JBrC3ShnnFJO/5vPjPEeJIq9A==
+  dependencies:
+    minipass "^3.0.0"
+
 fs-monkey@^0.3.3:
   version "0.3.3"
   resolved "https://registry.yarnpkg.com/fs-monkey/-/fs-monkey-0.3.3.tgz#7960bb2b1fa2653731b9d0e2e84812a7e8b3664a"
@@ -8794,6 +8803,11 @@ graceful-fs@^4.1.10, graceful-fs@^4.1.11, graceful-fs@^4.1.15, graceful-fs@^4.1.
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.1.tgz#1c1f0c364882c868f5bff6512146328336a11b1d"
   integrity sha512-b9usnbDGnD928gJB3LrCmxoibr3VE4U2SMo5PBuBnokWyDADTqDPXg4YpwKF1trpH+UbGp7QLicO3+aWEy0+mw==
 
+graceful-fs@^4.2.2:
+  version "4.2.2"
+  resolved "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.2.tgz#6f0952605d0140c1cfdb138ed005775b92d67b02"
+  integrity sha512-IItsdsea19BoLC7ELy13q1iJFNmd7ofZH5+X/pJr90/nRoPEX0DJo1dHDbgtYWOhJhcCgMDTOw84RZ72q6lB+Q==
+
 "graceful-readlink@>= 1.0.0":
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/graceful-readlink/-/graceful-readlink-1.0.1.tgz#4cafad76bc62f02fa039b2f94e9a3dd3a391a725"
@@ -9096,11 +9110,6 @@ hmac-drbg@^1.0.0:
     minimalistic-assert "^1.0.0"
     minimalistic-crypto-utils "^1.0.1"
 
-hoek@4.x.x:
-  version "4.2.1"
-  resolved "https://registry.npmjs.org/hoek/-/hoek-4.2.1.tgz#9634502aa12c445dd5a7c5734b572bb8738aacbb"
-  integrity sha512-QLg82fGkfnJ/4iy1xZ81/9SIJiq1NGFUMGs6ParyjBZr6jW2Ufj/snDqTHixNlHdPNwN2RLVD0Pi3igeK9+JfA==
-
 hogan.js@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/hogan.js/-/hogan.js-3.0.2.tgz#4cd9e1abd4294146e7679e41d7898732b02c7bfd"
@@ -9488,7 +9497,7 @@ indexes-of@^1.0.1:
   resolved "https://registry.yarnpkg.com/indexes-of/-/indexes-of-1.0.1.tgz#f30f716c8e2bd346c7b67d3df3915566a7c05607"
   integrity sha1-8w9xbI4r00bHtn0985FVZqfAVgc=
 
-infer-owner@^1.0.3:
+infer-owner@^1.0.3, infer-owner@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/infer-owner/-/infer-owner-1.0.4.tgz#c4cefcaa8e51051c2a40ba2ce8a3d27295af9467"
   integrity sha512-IClj+Xz94+d7irH5qRyfJonOdfTzuDaifE6ZPWfx0N0+/ATZCbuTPq2prFl526urkQd90WyUKIh1DfBQ2hMz9A==
@@ -10059,13 +10068,6 @@ isbinaryfile@^4.0.0:
   resolved "https://registry.yarnpkg.com/isbinaryfile/-/isbinaryfile-4.0.2.tgz#bfc45642da645681c610cca831022e30af426488"
   integrity sha512-C3FSxJdNrEr2F4z6uFtNzECDM5hXk+46fxaa+cwBe5/XrWSmzdG8DDgyjfX6/NRdBB21q2JXuRAzPCUs+fclnQ==
 
-isemail@3.x.x:
-  version "3.2.0"
-  resolved "https://registry.npmjs.org/isemail/-/isemail-3.2.0.tgz#59310a021931a9fb06bbb51e155ce0b3f236832c"
-  integrity sha512-zKqkK+O+dGqevc93KNsbZ/TqTUFd46MwWjYOoMrjIMZ51eU7DtQG3Wmd9SQQT7i7RVnuTPEiYEWHU3MSbxC1Tg==
-  dependencies:
-    punycode "2.x.x"
-
 isexe@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/isexe/-/isexe-2.0.0.tgz#e8fbf374dc556ff8947a10dcb0572d633f2cfa10"
@@ -10635,15 +10637,6 @@ jju@^1.1.0:
   resolved "https://registry.yarnpkg.com/jju/-/jju-1.4.0.tgz#a3abe2718af241a2b2904f84a625970f389ae32a"
   integrity sha1-o6vicYryQaKykE+EpiWXDzia4yo=
 
-joi@^11.1.1:
-  version "11.4.0"
-  resolved "https://registry.npmjs.org/joi/-/joi-11.4.0.tgz#f674897537b625e9ac3d0b7e1604c828ad913ccb"
-  integrity sha512-O7Uw+w/zEWgbL6OcHbyACKSj0PkQeUgmehdoXVSxt92QFCq4+1390Rwh5moI2K/OgC7D8RHRZqHZxT2husMJHA==
-  dependencies:
-    hoek "4.x.x"
-    isemail "3.x.x"
-    topo "2.x.x"
-
 js-beautify@^1.6.12, js-beautify@^1.6.14:
   version "1.10.2"
   resolved "https://registry.yarnpkg.com/js-beautify/-/js-beautify-1.10.2.tgz#88c9099cd6559402b124cfab18754936f8a7b178"
@@ -12101,6 +12094,27 @@ minimist@~0.0.1:
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
   integrity sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8=
 
+minipass-collect@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.npmjs.org/minipass-collect/-/minipass-collect-1.0.2.tgz#22b813bf745dc6edba2576b940022ad6edc8c617"
+  integrity sha512-6T6lH0H8OG9kITm/Jm6tdooIbogG9e0tLgpY6mphXSm/A9u8Nq1ryBG+Qspiub9LjWlBPsPS3tWQ/Botq4FdxA==
+  dependencies:
+    minipass "^3.0.0"
+
+minipass-flush@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.npmjs.org/minipass-flush/-/minipass-flush-1.0.5.tgz#82e7135d7e89a50ffe64610a787953c4c4cbb373"
+  integrity sha512-JmQSYYpPUqX5Jyn1mXaRwOda1uQ8HP5KAT/oDSLCzt1BYRhQU0/hDtsB1ufZfEEzMZ9aAVmsBw8+FWsIXlClWw==
+  dependencies:
+    minipass "^3.0.0"
+
+minipass-pipeline@^1.2.2:
+  version "1.2.2"
+  resolved "https://registry.npmjs.org/minipass-pipeline/-/minipass-pipeline-1.2.2.tgz#3dcb6bb4a546e32969c7ad710f2c79a86abba93a"
+  integrity sha512-3JS5A2DKhD2g0Gg8x3yamO0pj7YeKGwVlDS90pF++kxptwx/F+B//roxf9SqYil5tQo65bijy+dAuAFZmYOouA==
+  dependencies:
+    minipass "^3.0.0"
+
 minipass@^2.2.1, minipass@^2.3.5:
   version "2.3.5"
   resolved "https://registry.yarnpkg.com/minipass/-/minipass-2.3.5.tgz#cacebe492022497f656b0f0f51e2682a9ed2d848"
@@ -12117,6 +12131,13 @@ minipass@^2.2.4:
     safe-buffer "^5.1.2"
     yallist "^3.0.0"
 
+minipass@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.npmjs.org/minipass/-/minipass-3.0.1.tgz#b4fec73bd61e8a40f0b374ddd04260ade2c8ec20"
+  integrity sha512-2y5okJ4uBsjoD2vAbLKL9EUQPPkC0YMIp+2mZOXG3nBba++pdfJWRxx2Ewirc0pwAJYu4XtWg2EkVo1nRXuO/w==
+  dependencies:
+    yallist "^4.0.0"
+
 minizlib@^1.1.0, minizlib@^1.2.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/minizlib/-/minizlib-1.2.1.tgz#dd27ea6136243c7c880684e8672bb3a45fd9b614"
@@ -13193,6 +13214,13 @@ p-map@^2.0.0, p-map@^2.1.0:
   resolved "https://registry.yarnpkg.com/p-map/-/p-map-2.1.0.tgz#310928feef9c9ecc65b68b17693018a665cea175"
   integrity sha512-y3b8Kpd8OAN444hxfBbFfj1FY/RjtTd8tzYwhUqNYXx0fXx2iX4maP4Qr6qhIKbQXI02wTLAda4fYUbDagTUFw==
 
+p-map@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.npmjs.org/p-map/-/p-map-3.0.0.tgz#d704d9af8a2ba684e2600d9a215983d4141a979d"
+  integrity sha512-d3qXVTF/s+W+CdJ5A29wywV2n8CQQYahlgz2bFiA+4eVNJbHJodPZ+/gXwPGh0bOqA+j8S+6+ckmvLGPk1QpxQ==
+  dependencies:
+    aggregate-error "^3.0.0"
+
 p-pipe@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/p-pipe/-/p-pipe-1.2.0.tgz#4b1a11399a11520a67790ee5a0c1d5881d6befe9"
@@ -14074,11 +14102,6 @@ prettier@1.16.3:
   resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.18.2.tgz#6823e7c5900017b4bd3acf46fe9ac4b4d7bda9ea"
   integrity sha512-OeHeMc0JhFE9idD4ZdtNibzY0+TPHSpSSb9h8FqtP+YnoZZ1sl8Vc9b1sasjfymH3SonAF4QcA2+mzHPhMvIiw==
 
-pretty-bytes@^4.0.2:
-  version "4.0.2"
-  resolved "https://registry.npmjs.org/pretty-bytes/-/pretty-bytes-4.0.2.tgz#b2bf82e7350d65c6c33aa95aaa5a4f6327f61cd9"
-  integrity sha1-sr+C5zUNZcbDOqlaqlpPYyf2HNk=
-
 pretty-bytes@^5.1.0:
   version "5.3.0"
   resolved "https://registry.yarnpkg.com/pretty-bytes/-/pretty-bytes-5.3.0.tgz#f2849e27db79fb4d6cfe24764fc4134f165989f2"
@@ -14323,16 +14346,16 @@ punycode@1.3.2:
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.3.2.tgz#9653a036fb7c1ee42342f2325cceefea3926c48d"
   integrity sha1-llOgNvt8HuQjQvIyXM7v6jkmxI0=
 
-punycode@2.x.x, punycode@^2.1.0, punycode@^2.1.1:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/punycode/-/punycode-2.1.1.tgz#b58b010ac40c22c5657616c8d2c2c02c7bf479ec"
-  integrity sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A==
-
 punycode@^1.2.4, punycode@^1.3.2, punycode@^1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.4.1.tgz#c0d5a63b2718800ad8e1eb0fa5269c84dd41845e"
   integrity sha1-wNWmOycYgArY4esPpSachN1BhF4=
 
+punycode@^2.1.0, punycode@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/punycode/-/punycode-2.1.1.tgz#b58b010ac40c22c5657616c8d2c2c02c7bf479ec"
+  integrity sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A==
+
 puppeteer@^1.11.0:
   version "1.11.0"
   resolved "https://registry.yarnpkg.com/puppeteer/-/puppeteer-1.11.0.tgz#63cdbe12b07275cd6e0b94bce41f3fcb20305770"
@@ -15022,6 +15045,13 @@ rimraf@2, rimraf@2.6.3, rimraf@^2.2.8, rimraf@^2.5.0, rimraf@^2.5.4, rimraf@^2.6
   dependencies:
     glob "^7.1.3"
 
+rimraf@^2.7.1:
+  version "2.7.1"
+  resolved "https://registry.npmjs.org/rimraf/-/rimraf-2.7.1.tgz#35797f13a7fdadc566142c29d4f07ccad483e3ec"
+  integrity sha512-uWjbaKIK3T1OSVptzX7Nl6PvQ3qAGtKEtVRjRuazjfL3Bx5eI409VZSqgND+4UNnmzLVdPj9FqFJNPqBZFve4w==
+  dependencies:
+    glob "^7.1.3"
+
 rimraf@~2.2.6:
   version "2.2.8"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.2.8.tgz#e439be2aaee327321952730f99a8929e4fc50582"
@@ -15183,6 +15213,14 @@ schema-utils@^2.1.0:
     ajv "^6.10.2"
     ajv-keywords "^3.4.1"
 
+schema-utils@^2.4.1:
+  version "2.4.1"
+  resolved "https://registry.npmjs.org/schema-utils/-/schema-utils-2.4.1.tgz#e89ade5d056dc8bcaca377574bb4a9c4e1b8be56"
+  integrity sha512-RqYLpkPZX5Oc3fw/kHHHyP56fg5Y+XBpIpV8nCg0znIALfq3OH+Ea9Hfeac9BAMwG5IICltiZ0vxFvJQONfA5w==
+  dependencies:
+    ajv "^6.10.2"
+    ajv-keywords "^3.4.1"
+
 scrollparent@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/scrollparent/-/scrollparent-2.0.1.tgz#715d5b9cc57760fb22bdccc3befb5bfe06b1a317"
@@ -15294,6 +15332,11 @@ serialize-javascript@^1.3.0, serialize-javascript@^1.7.0:
   resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-1.7.0.tgz#d6e0dfb2a3832a8c94468e6eb1db97e55a192a65"
   integrity sha512-ke8UG8ulpFOxO8f8gRYabHQe/ZntKlcig2Mp+8+URDP1D8vJZ0KUt7LYo07q25Z/+JVSgpr/cui9PIp5H6/+nA==
 
+serialize-javascript@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-2.1.0.tgz#9310276819efd0eb128258bb341957f6eb2fc570"
+  integrity sha512-a/mxFfU00QT88umAJQsNWOnUKckhNCqOl028N48e7wFmo2/EHpTo9Wso+iJJCMrQnmFvcjto5RJdAHEvVhcyUQ==
+
 serve-handler@^6.0.1:
   version "6.1.0"
   resolved "https://registry.yarnpkg.com/serve-handler/-/serve-handler-6.1.0.tgz#f1606dc6ff8f9029a1ee042c11dfe7903a5cb92e"
@@ -15746,6 +15789,14 @@ ssri@^6.0.0, ssri@^6.0.1:
   dependencies:
     figgy-pudding "^3.5.1"
 
+ssri@^7.0.0:
+  version "7.0.1"
+  resolved "https://registry.npmjs.org/ssri/-/ssri-7.0.1.tgz#b0cab7bbb11ac9ea07f003453e2011f8cbed9f34"
+  integrity sha512-FfndBvkXL9AHyGLNzU3r9AvYIBBZ7gm+m+kd0p8cT3/v4OliMAyipZAhLVEv1Zi/k4QFq9CstRGVd9pW/zcHFQ==
+  dependencies:
+    figgy-pudding "^3.5.1"
+    minipass "^3.0.0"
+
 stable@^0.1.8:
   version "0.1.8"
   resolved "https://registry.yarnpkg.com/stable/-/stable-0.1.8.tgz#836eb3c8382fe2936feaf544631017ce7d47a3cf"
@@ -16319,7 +16370,7 @@ term-size@^1.2.0:
   dependencies:
     execa "^0.7.0"
 
-terser-webpack-plugin@^1.3.0, terser-webpack-plugin@^1.4.1:
+terser-webpack-plugin@^1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/terser-webpack-plugin/-/terser-webpack-plugin-1.4.1.tgz#61b18e40eaee5be97e771cdbb10ed1280888c2b4"
   integrity sha512-ZXmmfiwtCLfz8WKZyYUuuHf3dMYEjg8NrjHMb0JqHVHVOSkzp3cW2/XG1fP3tRhqEqSzMwzzRQGtAPbs4Cncxg==
@@ -16334,6 +16385,20 @@ terser-webpack-plugin@^1.3.0, terser-webpack-plugin@^1.4.1:
     webpack-sources "^1.4.0"
     worker-farm "^1.7.0"
 
+terser-webpack-plugin@^2.1.2:
+  version "2.1.3"
+  resolved "https://registry.npmjs.org/terser-webpack-plugin/-/terser-webpack-plugin-2.1.3.tgz#85430da71ba88a60072bf659589eafaf6a00dc22"
+  integrity sha512-z5Utx0TxmirZvRNL1GC795tlDM+bO83ZfcbtkL1y1VLoWtZ7S2a9+HFCLnabSRE/Yjsu4zCEX6U6CIRo4dVmcQ==
+  dependencies:
+    cacache "^13.0.1"
+    find-cache-dir "^3.0.0"
+    jest-worker "^24.9.0"
+    schema-utils "^2.4.1"
+    serialize-javascript "^2.1.0"
+    source-map "^0.6.1"
+    terser "^4.3.8"
+    webpack-sources "^1.4.3"
+
 terser@^4.1.2:
   version "4.1.3"
   resolved "https://registry.yarnpkg.com/terser/-/terser-4.1.3.tgz#6074fbcf3517561c3272ea885f422c7a8c32d689"
@@ -16343,6 +16408,15 @@ terser@^4.1.2:
     source-map "~0.6.1"
     source-map-support "~0.5.12"
 
+terser@^4.3.8:
+  version "4.3.8"
+  resolved "https://registry.npmjs.org/terser/-/terser-4.3.8.tgz#707f05f3f4c1c70c840e626addfdb1c158a17136"
+  integrity sha512-otmIRlRVmLChAWsnSFNO0Bfk6YySuBp6G9qrHiJwlLDd4mxe2ta4sjI7TzIR+W1nBMjilzrMcPOz9pSusgx3hQ==
+  dependencies:
+    commander "^2.20.0"
+    source-map "~0.6.1"
+    source-map-support "~0.5.12"
+
 test-exclude@^5.2.3:
   version "5.2.3"
   resolved "https://registry.yarnpkg.com/test-exclude/-/test-exclude-5.2.3.tgz#c3d3e1e311eb7ee405e092dac10aefd09091eac0"
@@ -16576,13 +16650,6 @@ toml@^3.0.0:
   resolved "https://registry.yarnpkg.com/toml/-/toml-3.0.0.tgz#342160f1af1904ec9d204d03a5d61222d762c5ee"
   integrity sha512-y/mWCZinnvxjTKYhJ+pYxwD0mRLVvOtdS2Awbgxln6iEnt4rk0yBxeSBHkGJcPucRiG0e55mwWp+g/05rsrd6w==
 
-topo@2.x.x:
-  version "2.0.2"
-  resolved "https://registry.npmjs.org/topo/-/topo-2.0.2.tgz#cd5615752539057c0dc0491a621c3bc6fbe1d182"
-  integrity sha1-zVYVdSU5BXwNwEkaYhw7xvvh0YI=
-  dependencies:
-    hoek "4.x.x"
-
 toposort@^1.0.0:
   version "1.0.7"
   resolved "https://registry.yarnpkg.com/toposort/-/toposort-1.0.7.tgz#2e68442d9f64ec720b8cc89e6443ac6caa950029"
@@ -17719,7 +17786,7 @@ webpack-merge@^4.1.2, webpack-merge@^4.2.1:
   dependencies:
     lodash "^4.17.5"
 
-webpack-sources@^1.1.0, webpack-sources@^1.4.0, webpack-sources@^1.4.1:
+webpack-sources@^1.1.0, webpack-sources@^1.4.0, webpack-sources@^1.4.1, webpack-sources@^1.4.3:
   version "1.4.3"
   resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-1.4.3.tgz#eedd8ec0b928fbf1cbfe994e22d2d890f330a933"
   integrity sha512-lgTS3Xhv1lCOKo7SA5TjKXMjpSM4sBjNV5+q2bqesbSPs5FjGmU6jjtBSkX9b4qW87vDIsCIlUPOEhbZrMdjeQ==
@@ -17908,13 +17975,6 @@ wordwrap@~1.0.0:
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
   integrity sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=
 
-workbox-background-sync@^3.6.3:
-  version "3.6.3"
-  resolved "https://registry.npmjs.org/workbox-background-sync/-/workbox-background-sync-3.6.3.tgz#6609a0fac9eda336a7c52e6aa227ba2ae532ad94"
-  integrity sha512-ypLo0B6dces4gSpaslmDg5wuoUWrHHVJfFWwl1udvSylLdXvnrfhFfriCS42SNEe5lsZtcNZF27W/SMzBlva7Q==
-  dependencies:
-    workbox-core "^3.6.3"
-
 workbox-background-sync@^4.3.1:
   version "4.3.1"
   resolved "https://registry.yarnpkg.com/workbox-background-sync/-/workbox-background-sync-4.3.1.tgz#26821b9bf16e9e37fd1d640289edddc08afd1950"
@@ -17922,13 +17982,6 @@ workbox-background-sync@^4.3.1:
   dependencies:
     workbox-core "^4.3.1"
 
-workbox-broadcast-cache-update@^3.6.3:
-  version "3.6.3"
-  resolved "https://registry.npmjs.org/workbox-broadcast-cache-update/-/workbox-broadcast-cache-update-3.6.3.tgz#3f5dff22ada8c93e397fb38c1dc100606a7b92da"
-  integrity sha512-pJl4lbClQcvp0SyTiEw0zLSsVYE1RDlCPtpKnpMjxFtu8lCFTAEuVyzxp9w7GF4/b3P4h5nyQ+q7V9mIR7YzGg==
-  dependencies:
-    workbox-core "^3.6.3"
-
 workbox-broadcast-update@^4.3.1:
   version "4.3.1"
   resolved "https://registry.yarnpkg.com/workbox-broadcast-update/-/workbox-broadcast-update-4.3.1.tgz#e2c0280b149e3a504983b757606ad041f332c35b"
@@ -17936,34 +17989,6 @@ workbox-broadcast-update@^4.3.1:
   dependencies:
     workbox-core "^4.3.1"
 
-workbox-build@^3.6.3:
-  version "3.6.3"
-  resolved "https://registry.npmjs.org/workbox-build/-/workbox-build-3.6.3.tgz#77110f9f52dc5d82fa6c1c384c6f5e2225adcbd8"
-  integrity sha512-w0clZ/pVjL8VXy6GfthefxpEXs0T8uiRuopZSFVQ8ovfbH6c6kUpEh6DcYwm/Y6dyWPiCucdyAZotgjz+nRz8g==
-  dependencies:
-    babel-runtime "^6.26.0"
-    common-tags "^1.4.0"
-    fs-extra "^4.0.2"
-    glob "^7.1.2"
-    joi "^11.1.1"
-    lodash.template "^4.4.0"
-    pretty-bytes "^4.0.2"
-    stringify-object "^3.2.2"
-    strip-comments "^1.0.2"
-    workbox-background-sync "^3.6.3"
-    workbox-broadcast-cache-update "^3.6.3"
-    workbox-cache-expiration "^3.6.3"
-    workbox-cacheable-response "^3.6.3"
-    workbox-core "^3.6.3"
-    workbox-google-analytics "^3.6.3"
-    workbox-navigation-preload "^3.6.3"
-    workbox-precaching "^3.6.3"
-    workbox-range-requests "^3.6.3"
-    workbox-routing "^3.6.3"
-    workbox-strategies "^3.6.3"
-    workbox-streams "^3.6.3"
-    workbox-sw "^3.6.3"
-
 workbox-build@^4.3.1:
   version "4.3.1"
   resolved "https://registry.yarnpkg.com/workbox-build/-/workbox-build-4.3.1.tgz#414f70fb4d6de47f6538608b80ec52412d233e64"
@@ -17993,20 +18018,6 @@ workbox-build@^4.3.1:
     workbox-sw "^4.3.1"
     workbox-window "^4.3.1"
 
-workbox-cache-expiration@^3.6.3:
-  version "3.6.3"
-  resolved "https://registry.npmjs.org/workbox-cache-expiration/-/workbox-cache-expiration-3.6.3.tgz#4819697254a72098a13f94b594325a28a1e90372"
-  integrity sha512-+ECNph/6doYx89oopO/UolYdDmQtGUgo8KCgluwBF/RieyA1ZOFKfrSiNjztxOrGJoyBB7raTIOlEEwZ1LaHoA==
-  dependencies:
-    workbox-core "^3.6.3"
-
-workbox-cacheable-response@^3.6.3:
-  version "3.6.3"
-  resolved "https://registry.npmjs.org/workbox-cacheable-response/-/workbox-cacheable-response-3.6.3.tgz#869f1a68fce9063f6869ddbf7fa0a2e0a868b3aa"
-  integrity sha512-QpmbGA9SLcA7fklBLm06C4zFg577Dt8u3QgLM0eMnnbaVv3rhm4vbmDpBkyTqvgK/Ly8MBDQzlXDtUCswQwqqg==
-  dependencies:
-    workbox-core "^3.6.3"
-
 workbox-cacheable-response@^4.3.1:
   version "4.3.1"
   resolved "https://registry.yarnpkg.com/workbox-cacheable-response/-/workbox-cacheable-response-4.3.1.tgz#f53e079179c095a3f19e5313b284975c91428c91"
@@ -18014,11 +18025,6 @@ workbox-cacheable-response@^4.3.1:
   dependencies:
     workbox-core "^4.3.1"
 
-workbox-core@^3.6.3:
-  version "3.6.3"
-  resolved "https://registry.npmjs.org/workbox-core/-/workbox-core-3.6.3.tgz#69abba70a4f3f2a5c059295a6f3b7c62bd00e15c"
-  integrity sha512-cx9cx0nscPkIWs8Pt98HGrS9/aORuUcSkWjG25GqNWdvD/pSe7/5Oh3BKs0fC+rUshCiyLbxW54q0hA+GqZeSQ==
-
 workbox-core@^4.3.1:
   version "4.3.1"
   resolved "https://registry.yarnpkg.com/workbox-core/-/workbox-core-4.3.1.tgz#005d2c6a06a171437afd6ca2904a5727ecd73be6"
@@ -18031,16 +18037,6 @@ workbox-expiration@^4.3.1:
   dependencies:
     workbox-core "^4.3.1"
 
-workbox-google-analytics@^3.6.3:
-  version "3.6.3"
-  resolved "https://registry.npmjs.org/workbox-google-analytics/-/workbox-google-analytics-3.6.3.tgz#99df2a3d70d6e91961e18a6752bac12e91fbf727"
-  integrity sha512-RQBUo/6SXtIaQTRFj4RQZ9e1gAl7D8oS5S+Hi173Kk70/BgJjzPwXpC5A249Jv5YfkCOLMQCeF9A27BiD0b0ig==
-  dependencies:
-    workbox-background-sync "^3.6.3"
-    workbox-core "^3.6.3"
-    workbox-routing "^3.6.3"
-    workbox-strategies "^3.6.3"
-
 workbox-google-analytics@^4.3.1:
   version "4.3.1"
   resolved "https://registry.yarnpkg.com/workbox-google-analytics/-/workbox-google-analytics-4.3.1.tgz#9eda0183b103890b5c256e6f4ea15a1f1548519a"
@@ -18051,13 +18047,6 @@ workbox-google-analytics@^4.3.1:
     workbox-routing "^4.3.1"
     workbox-strategies "^4.3.1"
 
-workbox-navigation-preload@^3.6.3:
-  version "3.6.3"
-  resolved "https://registry.npmjs.org/workbox-navigation-preload/-/workbox-navigation-preload-3.6.3.tgz#a2c34eb7c17e7485b795125091215f757b3c4964"
-  integrity sha512-dd26xTX16DUu0i+MhqZK/jQXgfIitu0yATM4jhRXEmpMqQ4MxEeNvl2CgjDMOHBnCVMax+CFZQWwxMx/X/PqCw==
-  dependencies:
-    workbox-core "^3.6.3"
-
 workbox-navigation-preload@^4.3.1:
   version "4.3.1"
   resolved "https://registry.yarnpkg.com/workbox-navigation-preload/-/workbox-navigation-preload-4.3.1.tgz#29c8e4db5843803b34cd96dc155f9ebd9afa453d"
@@ -18065,13 +18054,6 @@ workbox-navigation-preload@^4.3.1:
   dependencies:
     workbox-core "^4.3.1"
 
-workbox-precaching@^3.6.3:
-  version "3.6.3"
-  resolved "https://registry.npmjs.org/workbox-precaching/-/workbox-precaching-3.6.3.tgz#5341515e9d5872c58ede026a31e19bafafa4e1c1"
-  integrity sha512-aBqT66BuMFviPTW6IpccZZHzpA8xzvZU2OM1AdhmSlYDXOJyb1+Z6blVD7z2Q8VNtV1UVwQIdImIX+hH3C3PIw==
-  dependencies:
-    workbox-core "^3.6.3"
-
 workbox-precaching@^4.3.1:
   version "4.3.1"
   resolved "https://registry.yarnpkg.com/workbox-precaching/-/workbox-precaching-4.3.1.tgz#9fc45ed122d94bbe1f0ea9584ff5940960771cba"
@@ -18079,13 +18061,6 @@ workbox-precaching@^4.3.1:
   dependencies:
     workbox-core "^4.3.1"
 
-workbox-range-requests@^3.6.3:
-  version "3.6.3"
-  resolved "https://registry.npmjs.org/workbox-range-requests/-/workbox-range-requests-3.6.3.tgz#3cc21cba31f2dd8c43c52a196bcc8f6cdbcde803"
-  integrity sha512-R+yLWQy7D9aRF9yJ3QzwYnGFnGDhMUij4jVBUVtkl67oaVoP1ymZ81AfCmfZro2kpPRI+vmNMfxxW531cqdx8A==
-  dependencies:
-    workbox-core "^3.6.3"
-
 workbox-range-requests@^4.3.1:
   version "4.3.1"
   resolved "https://registry.yarnpkg.com/workbox-range-requests/-/workbox-range-requests-4.3.1.tgz#f8a470188922145cbf0c09a9a2d5e35645244e74"
@@ -18093,13 +18068,6 @@ workbox-range-requests@^4.3.1:
   dependencies:
     workbox-core "^4.3.1"
 
-workbox-routing@^3.6.3:
-  version "3.6.3"
-  resolved "https://registry.npmjs.org/workbox-routing/-/workbox-routing-3.6.3.tgz#659cd8f9274986cfa98fda0d050de6422075acf7"
-  integrity sha512-bX20i95OKXXQovXhFOViOK63HYmXvsIwZXKWbSpVeKToxMrp0G/6LZXnhg82ijj/S5yhKNRf9LeGDzaqxzAwMQ==
-  dependencies:
-    workbox-core "^3.6.3"
-
 workbox-routing@^4.3.1:
   version "4.3.1"
   resolved "https://registry.yarnpkg.com/workbox-routing/-/workbox-routing-4.3.1.tgz#a675841af623e0bb0c67ce4ed8e724ac0bed0cda"
@@ -18107,13 +18075,6 @@ workbox-routing@^4.3.1:
   dependencies:
     workbox-core "^4.3.1"
 
-workbox-strategies@^3.6.3:
-  version "3.6.3"
-  resolved "https://registry.npmjs.org/workbox-strategies/-/workbox-strategies-3.6.3.tgz#11a0dc249a7bc23d3465ec1322d28fa6643d64a0"
-  integrity sha512-Pg5eulqeKet2y8j73Yw6xTgLdElktcWExGkzDVCGqfV9JCvnGuEpz5eVsCIK70+k4oJcBCin9qEg3g3CwEIH3g==
-  dependencies:
-    workbox-core "^3.6.3"
-
 workbox-strategies@^4.3.1:
   version "4.3.1"
   resolved "https://registry.yarnpkg.com/workbox-strategies/-/workbox-strategies-4.3.1.tgz#d2be03c4ef214c115e1ab29c9c759c9fe3e9e646"
@@ -18121,13 +18082,6 @@ workbox-strategies@^4.3.1:
   dependencies:
     workbox-core "^4.3.1"
 
-workbox-streams@^3.6.3:
-  version "3.6.3"
-  resolved "https://registry.npmjs.org/workbox-streams/-/workbox-streams-3.6.3.tgz#beaea5d5b230239836cc327b07d471aa6101955a"
-  integrity sha512-rqDuS4duj+3aZUYI1LsrD2t9hHOjwPqnUIfrXSOxSVjVn83W2MisDF2Bj+dFUZv4GalL9xqErcFW++9gH+Z27w==
-  dependencies:
-    workbox-core "^3.6.3"
-
 workbox-streams@^4.3.1:
   version "4.3.1"
   resolved "https://registry.yarnpkg.com/workbox-streams/-/workbox-streams-4.3.1.tgz#0b57da70e982572de09c8742dd0cb40a6b7c2cc3"
@@ -18135,25 +18089,11 @@ workbox-streams@^4.3.1:
   dependencies:
     workbox-core "^4.3.1"
 
-workbox-sw@^3.6.3:
-  version "3.6.3"
-  resolved "https://registry.npmjs.org/workbox-sw/-/workbox-sw-3.6.3.tgz#278ea4c1831b92bbe2d420da8399176c4b2789ff"
-  integrity sha512-IQOUi+RLhvYCiv80RP23KBW/NTtIvzvjex28B8NW1jOm+iV4VIu3VXKXTA6er5/wjjuhmtB28qEAUqADLAyOSg==
-
 workbox-sw@^4.3.1:
   version "4.3.1"
   resolved "https://registry.yarnpkg.com/workbox-sw/-/workbox-sw-4.3.1.tgz#df69e395c479ef4d14499372bcd84c0f5e246164"
   integrity sha512-0jXdusCL2uC5gM3yYFT6QMBzKfBr2XTk0g5TPAV4y8IZDyVNDyj1a8uSXy3/XrvkVTmQvLN4O5k3JawGReXr9w==
 
-workbox-webpack-plugin@^3.6.3:
-  version "3.6.3"
-  resolved "https://registry.npmjs.org/workbox-webpack-plugin/-/workbox-webpack-plugin-3.6.3.tgz#a807bb891b4e4e3c808df07e58f17de2d5ba6182"
-  integrity sha512-RwmKjc7HFHUFHoOlKoZUq9349u0QN3F8W5tZZU0vc1qsBZDINWXRiIBCAKvo/Njgay5sWz7z4I2adnyTo97qIQ==
-  dependencies:
-    babel-runtime "^6.26.0"
-    json-stable-stringify "^1.0.1"
-    workbox-build "^3.6.3"
-
 workbox-webpack-plugin@^4.3.1:
   version "4.3.1"
   resolved "https://registry.yarnpkg.com/workbox-webpack-plugin/-/workbox-webpack-plugin-4.3.1.tgz#47ff5ea1cc074b6c40fb5a86108863a24120d4bd"
@@ -18371,6 +18311,11 @@ yallist@^3.0.0, yallist@^3.0.2, yallist@^3.0.3:
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.0.3.tgz#b4b049e314be545e3ce802236d6cd22cd91c3de9"
   integrity sha512-S+Zk8DEWE6oKpV+vI3qWkaK+jSbIK86pCwe2IF/xwIpQ8jEuxpw9NyaGjmp9+BoJv5FV2piqCDcoCtStppiq2A==
 
+yallist@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz#9bb92790d9c0effec63be73519e11a35019a3a72"
+  integrity sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==
+
 yaml-front-matter@^3.4.1:
   version "3.4.1"
   resolved "https://registry.yarnpkg.com/yaml-front-matter/-/yaml-front-matter-3.4.1.tgz#e52e84fea6983b93755e9b1564dba989b006b5a5"