seo

package-lock.json

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     "reselect": {
       "version": "3.0.1",
@@ -10981,7 +11089,6 @@
       "version": "0.17.1",
       "resolved": "https://registry.npmjs.org/send/-/send-0.17.1.tgz",
       "integrity": "sha512-BsVKsiGcQMFwT8UxypobUKyv7irCNRHk1T0G680vk88yf6LBByGcZJOTJCrTP2xVN6yI+XjPJcNuE3V4fT9sAg==",
-      "dev": true,
       "requires": {
         "debug": "2.6.9",
         "depd": "~1.1.2",
@@ -11001,14 +11108,12 @@
         "mime": {
           "version": "1.6.0",
           "resolved": "https://registry.npmjs.org/mime/-/mime-1.6.0.tgz",
-          "integrity": "sha512-x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg==",
-          "dev": true
+          "integrity": "sha512-x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg=="
         },
         "ms": {
           "version": "2.1.1",
           "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.1.tgz",
-          "integrity": "sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg==",
-          "dev": true
+          "integrity": "sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg=="
         }
       }
     },
@@ -11063,7 +11168,6 @@
       "version": "1.14.1",
       "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.14.1.tgz",
       "integrity": "sha512-JMrvUwE54emCYWlTI+hGrGv5I8dEwmco/00EvkzIIsR7MqrHonbD9pO2MOfFnpFntl7ecpZs+3mW+XbQZu9QCg==",
-      "dev": true,
       "requires": {
         "encodeurl": "~1.0.2",
         "escape-html": "~1.0.3",
@@ -11106,8 +11210,7 @@
     "setprototypeof": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.1.tgz",
-      "integrity": "sha512-JvdAWfbXeIGaZ9cILp38HntZSFSo3mWg6xGcJJsd+d4aRMOqauag1C63dJfDw7OaMYwEbHMOxEZ1lqVRYP2OAw==",
-      "dev": true
+      "integrity": "sha512-JvdAWfbXeIGaZ9cILp38HntZSFSo3mWg6xGcJJsd+d4aRMOqauag1C63dJfDw7OaMYwEbHMOxEZ1lqVRYP2OAw=="
     },
     "sha.js": {
       "version": "2.4.11",
@@ -11590,8 +11693,7 @@
     "statuses": {
       "version": "1.5.0",
       "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
-      "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow=",
-      "dev": true
+      "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow="
     },
     "stdout-stream": {
       "version": "1.4.1",
@@ -12172,8 +12274,7 @@
     "toidentifier": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.0.tgz",
-      "integrity": "sha512-yaOH/Pk/VEhBWWTlhI+qXxDFXlejDGcQipMlyxda9nthulaxLZUNcUqFxokp0vcYnvteJln5FNQDRrxj3YcbVw==",
-      "dev": true
+      "integrity": "sha512-yaOH/Pk/VEhBWWTlhI+qXxDFXlejDGcQipMlyxda9nthulaxLZUNcUqFxokp0vcYnvteJln5FNQDRrxj3YcbVw=="
     },
     "topo": {
       "version": "2.0.2",
@@ -12203,6 +12304,7 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/tr46/-/tr46-1.0.1.tgz",
       "integrity": "sha1-qLE/1r/SSJUZZ0zN5VujaTtwbQk=",
+      "optional": true,
       "requires": {
         "punycode": "^2.1.0"
       }
@@ -12315,6 +12417,7 @@
       "version": "0.3.2",
       "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.3.2.tgz",
       "integrity": "sha1-WITKtRLPHTVeP7eE8wgEsrUg23I=",
+      "optional": true,
       "requires": {
         "prelude-ls": "~1.1.2"
       }
@@ -12329,7 +12432,6 @@
       "version": "1.6.18",
       "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
       "integrity": "sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==",
-      "dev": true,
       "requires": {
         "media-typer": "0.3.0",
         "mime-types": "~2.1.24"
@@ -12344,7 +12446,6 @@
       "version": "3.4.10",
       "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.4.10.tgz",
       "integrity": "sha512-Y2VsbPVs0FIshJztycsO2SfPk7/KAF/T72qzv9u5EpQ4kB2hQoHlhNQTsNyy6ul7lQtqJN/AoWeS23OzEiEFxw==",
-      "dev": true,
       "requires": {
         "commander": "~2.19.0",
         "source-map": "~0.6.1"
@@ -12353,8 +12454,7 @@
         "commander": {
           "version": "2.19.0",
           "resolved": "https://registry.npmjs.org/commander/-/commander-2.19.0.tgz",
-          "integrity": "sha512-6tvAOO+D6OENvRAh524Dh9jcfKTYDQAqvqezbCW82xj5X0pSrcpxtvRKHLG0yBY6SD7PSDrJaj+0AiOcKVd1Xg==",
-          "dev": true
+          "integrity": "sha512-6tvAOO+D6OENvRAh524Dh9jcfKTYDQAqvqezbCW82xj5X0pSrcpxtvRKHLG0yBY6SD7PSDrJaj+0AiOcKVd1Xg=="
         }
       }
     },
@@ -12472,8 +12572,7 @@
     "unpipe": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
-      "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw=",
-      "dev": true
+      "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw="
     },
     "unquote": {
       "version": "1.1.1",
@@ -12525,8 +12624,7 @@
     "upper-case": {
       "version": "1.1.3",
       "resolved": "https://registry.npmjs.org/upper-case/-/upper-case-1.1.3.tgz",
-      "integrity": "sha1-9rRQHC7EzdJrp4vnIilh3ndiFZg=",
-      "dev": true
+      "integrity": "sha1-9rRQHC7EzdJrp4vnIilh3ndiFZg="
     },
     "uri-js": {
       "version": "4.2.2",
@@ -12632,8 +12730,7 @@
     "utils-merge": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
-      "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM=",
-      "dev": true
+      "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
     },
     "uuid": {
       "version": "3.4.0",
@@ -12667,8 +12764,7 @@
     "vary": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
-      "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw=",
-      "dev": true
+      "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
     },
     "vendors": {
       "version": "1.0.4",
@@ -13228,7 +13324,8 @@
           "version": "3.0.0",
           "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-3.0.0.tgz",
           "integrity": "sha512-6eZs5Ls3WtCisHWp9S2GUy8dqkpGi4BVSz3GaqiE6ezub0512ESztXUwUB6C6IKbQkY2Pnb/mD4WYojCRwcwLA==",
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "readdirp": {
           "version": "3.4.0",
@@ -13283,7 +13380,8 @@
     "webidl-conversions": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-4.0.2.tgz",
-      "integrity": "sha512-YQ+BmxuTgd6UXZW3+ICGfyqRyHXVlD5GtQr5+qjiNW7bF0cqrzX500HVXPBOvgXb5YnzDd+h0zqyv61KUD7+Sg=="
+      "integrity": "sha512-YQ+BmxuTgd6UXZW3+ICGfyqRyHXVlD5GtQr5+qjiNW7bF0cqrzX500HVXPBOvgXb5YnzDd+h0zqyv61KUD7+Sg==",
+      "optional": true
     },
     "webpack": {
       "version": "4.42.1",
@@ -13645,6 +13743,7 @@
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/whatwg-encoding/-/whatwg-encoding-1.0.5.tgz",
       "integrity": "sha512-b5lim54JOPN9HtzvK9HFXvBma/rnfFeqsic0hSpjtDbVxR3dJKLc+KB4V6GgiGOvl7CY/KNh8rxSo9DKQrnUEw==",
+      "optional": true,
       "requires": {
         "iconv-lite": "0.4.24"
       }
@@ -13652,12 +13751,14 @@
     "whatwg-mimetype": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/whatwg-mimetype/-/whatwg-mimetype-2.3.0.tgz",
-      "integrity": "sha512-M4yMwr6mAnQz76TbJm914+gPpB/nCwvZbJU28cUD6dR004SAxDLOOSUaB1JDRqLtaOV/vi0IC5lEAGFgrjGv/g=="
+      "integrity": "sha512-M4yMwr6mAnQz76TbJm914+gPpB/nCwvZbJU28cUD6dR004SAxDLOOSUaB1JDRqLtaOV/vi0IC5lEAGFgrjGv/g==",
+      "optional": true
     },
     "whatwg-url": {
       "version": "7.1.0",
       "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-7.1.0.tgz",
       "integrity": "sha512-WUu7Rg1DroM7oQvGWfOiAK21n74Gg+T4elXEQYkOhtyLeWiJFoOGLXPKI/9gzIie9CtwVLm8wtw6YJdKyxSjeg==",
+      "optional": true,
       "requires": {
         "lodash.sortby": "^4.7.0",
         "tr46": "^1.0.1",
@@ -13916,7 +14017,6 @@
       "version": "6.2.1",
       "resolved": "https://registry.npmjs.org/ws/-/ws-6.2.1.tgz",
       "integrity": "sha512-GIyAXC2cB7LjvpgMt9EKS2ldqr0MTrORaleiOno6TweZ6r3TKtoFQWay/2PceJ3RuBasOHzXNn5Lrw1X0bEjqA==",
-      "dev": true,
       "requires": {
         "async-limiter": "~1.0.0"
       }
@@ -13945,7 +14045,8 @@
     "xml-name-validator": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/xml-name-validator/-/xml-name-validator-3.0.0.tgz",
-      "integrity": "sha512-A5CUptxDsvxKJEU3yO6DuWBSJz/qizqzJKOMIfUJHETbBw/sFaDxgd6fxm1ewUaM0jZ444Fc5vC5ROYurg/4Pw=="
+      "integrity": "sha512-A5CUptxDsvxKJEU3yO6DuWBSJz/qizqzJKOMIfUJHETbBw/sFaDxgd6fxm1ewUaM0jZ444Fc5vC5ROYurg/4Pw==",
+      "optional": true
     },
     "xmlchars": {
       "version": "2.2.0",
@@ -14044,6 +14145,15 @@
         }
       }
     },
+    "yauzl": {
+      "version": "2.10.0",
+      "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.10.0.tgz",
+      "integrity": "sha1-x+sXyT4RLLEIb6bY5R+wZnt5pfk=",
+      "requires": {
+        "buffer-crc32": "~0.2.3",
+        "fd-slicer": "~1.1.0"
+      }
+    },
     "zrender": {
       "version": "4.3.0",
       "resolved": "https://registry.npmjs.org/zrender/-/zrender-4.3.0.tgz",

package.json

@@ -22,6 +22,7 @@
     "lodash": "^4.17.11",
     "md5": "^2.2.1",
     "postcss-import": "^12.0.1",
+    "prerender-spa-plugin": "^3.4.0",
     "quill-image-resize-module": "^3.0.0",
     "register-service-worker": "^1.6.2",
     "script-loader": "^0.7.2",

src/main.js

@@ -94,5 +94,8 @@ new Vue({
             router,
             store,
             render: h => h(App),
+            mounted () {
+                document.dispatchEvent(new Event('render-event'))
+            }
         }).$mount('#app');
 

src/views/client/examPlatform.vue

@@ -1,5 +1,7 @@
 <template>
-
+    <div>
+        无硅油无硅油无硅油个娃
+    </div>
 </template>
 
 <script>

vue.config.js

@@ -4,6 +4,10 @@ const webpack = require('webpack');
 const CompressionPlugin = require('compression-webpack-plugin');
 const HtmlWebpackPlugin = require('html-webpack-plugin');
 
+//  describe: 预渲染 author: Wgy date:2020-08-07
+const PrerenderSPAPlugin = require('prerender-spa-plugin');
+const Renderer = PrerenderSPAPlugin.PuppeteerRenderer;
+
 function resolve(dir) {
     return path.join(__dirname, dir);
 }
@@ -125,6 +129,23 @@ module.exports = {
                                               threshold:            10240, // 对超过10k的数据压缩
                                               deleteOriginalAssets: false, // 不删除源文件
                                           }),
+                    new PrerenderSPAPlugin({
+                                               // 生成文件的路径，也可以与webpakc打包的一致。
+                                               // 下面这句话非常重要！！！
+                                               // 这个目录只能有一级，如果目录层次大于一级，在生成的时候不会有任何错误提示，在预渲染的时候只会卡着不动。
+                                               staticDir: path.join(__dirname,'dist'),
+                                               // 对应自己的路由文件，比如a有参数，就需要写成 /a/param1。
+                                               routes: ['/', '/index','/c/examPlatform'],
+                                               // 这个很重要，如果没有配置这段，也不会进行预编译
+                                               renderer: new Renderer({
+                                                                          inject: {
+                                                                              foo: 'bar'
+                                                                          },
+                                                                          headless: false,
+                                                                          // 在 main.js 中 document.dispatchEvent(new Event('render-event'))，两者的事件名称要对应上。
+                                                                          renderAfterDocumentEvent: 'render-event'
+                                                                      })
+                                           }),
 
                 ],
             });

yarn.lock

@@ -736,6 +736,23 @@
   resolved "https://registry.yarnpkg.com/@nodelib/fs.stat/-/fs.stat-1.1.3.tgz#2b5a3ab3f918cca48a8c754c08168e3f03eba61b"
   integrity sha512-shAmDyaQC4H92APFoIaVDHCx5bStIocgvbwQyxPRrbUY20V1EYTbSDchWbuwlMG3V17cprZhA6+78JfB+3DTPw==
 
+"@prerenderer/prerenderer@^0.7.2":
+  version "0.7.2"
+  resolved "https://registry.yarnpkg.com/@prerenderer/prerenderer/-/prerenderer-0.7.2.tgz#b26a806bcdb3b313d527b313bdd72a57434b45fd"
+  integrity sha512-zWG3uFnrQWDJQoSzGB8bOnNhJCgIiylVYDFBP7Nw2LqngHOqwvpdBtGSjfajC8+fdR/iB2FqMqe27cfdmf/8TQ==
+  dependencies:
+    express "^4.16.2"
+    http-proxy-middleware "^0.18.0"
+    portfinder "^1.0.13"
+
+"@prerenderer/renderer-puppeteer@^0.2.0":
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/@prerenderer/renderer-puppeteer/-/renderer-puppeteer-0.2.0.tgz#86bea00159851dc4f330b7325af5cdca7f185bf1"
+  integrity sha512-sC8WBcYcXbqm6premzCcUNDRROtAwBtBewUuzHyKcYDqU6InqjfpUQEXdIlhikN0gvqzlJy1+c7OJSfNYi4/tg==
+  dependencies:
+    promise-limit "^2.5.0"
+    puppeteer "^1.7.0"
+
 "@soda/friendly-errors-webpack-plugin@^1.7.1":
   version "1.7.1"
   resolved "https://registry.yarnpkg.com/@soda/friendly-errors-webpack-plugin/-/friendly-errors-webpack-plugin-1.7.1.tgz#706f64bcb4a8b9642b48ae3ace444c70334d615d"
@@ -1272,6 +1289,13 @@ aes-decrypter@3.0.0:
     global "^4.3.2"
     pkcs7 "^1.0.2"
 
+agent-base@^4.3.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-4.3.0.tgz#8165f01c436009bccad0b1d122f05ed770efc6ee"
+  integrity sha512-salcGninV0nPrwpGNn4VTXBb1SOuXQBiqbrNXoeizJsHrsL6ERFM2Ne3JUSBWRE6aeNJI2ROP/WEEIDUiDe3cg==
+  dependencies:
+    es6-promisify "^5.0.0"
+
 aggregate-error@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/aggregate-error/-/aggregate-error-3.0.1.tgz#db2fe7246e536f40d9b5442a39e117d7dd6a24e0"
@@ -2015,6 +2039,11 @@ buffer-alloc@^1.2.0:
     buffer-alloc-unsafe "^1.1.0"
     buffer-fill "^1.0.0"
 
+buffer-crc32@~0.2.3:
+  version "0.2.13"
+  resolved "https://registry.yarnpkg.com/buffer-crc32/-/buffer-crc32-0.2.13.tgz#0d333e3f00eac50aa1454abd30ef8c2a5d9a7242"
+  integrity sha1-DTM+PwDqxQqhRUq9MO+MKl2ackI=
+
 buffer-equal@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/buffer-equal/-/buffer-equal-1.0.0.tgz#59616b498304d556abd466966b22eeda3eca5fbe"
@@ -2664,7 +2693,7 @@ concat-map@0.0.1:
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
   integrity sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=
 
-concat-stream@^1.5.0, concat-stream@^1.6.0:
+concat-stream@^1.5.0, concat-stream@^1.6.0, concat-stream@^1.6.2:
   version "1.6.2"
   resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.2.tgz#904bdf194cd3122fc675c77fc4ac3d4ff0fd1a34"
   integrity sha512-27HBghJxjiZtIk3Ycvn/4kbJk/1uZuJFfuPEns6LaEvpvG1f0hTea8lilrouyo9mVc2GWdcEZ8OLoGmSADlrCw==
@@ -3112,7 +3141,7 @@ de-indent@^1.0.2:
   resolved "https://registry.yarnpkg.com/de-indent/-/de-indent-1.0.2.tgz#b2038e846dc33baa5796128d0804b455b8c1e21d"
   integrity sha1-sgOOhG3DO6pXlhKNCAS0VbjB4h0=
 
-debug@2.6.9, debug@^2.2.0, debug@^2.3.3:
+debug@2.6.9, debug@^2.2.0, debug@^2.3.3, debug@^2.6.9:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
   integrity sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==
@@ -3126,7 +3155,7 @@ debug@=3.1.0:
   dependencies:
     ms "2.0.0"
 
-debug@^3.1.1, debug@^3.2.5, debug@^3.2.6:
+debug@^3.1.0, debug@^3.1.1, debug@^3.2.5, debug@^3.2.6:
   version "3.2.6"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.2.6.tgz#e83d17de16d8a7efb7717edbe5fb10135eee629b"
   integrity sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==
@@ -3630,11 +3659,18 @@ es6-iterator@^2.0.1, es6-iterator@^2.0.3, es6-iterator@~2.0.3:
     es5-ext "^0.10.35"
     es6-symbol "^3.1.1"
 
-es6-promise@^4.2.8:
+es6-promise@^4.0.3, es6-promise@^4.2.8:
   version "4.2.8"
   resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.8.tgz#4eb21594c972bc40553d276e510539143db53e0a"
   integrity sha512-HJDGx5daxeIvxdBxvG2cb9g4tEvwIk3i8+nhX0yGrYmZUzbkdg8QbDevheDB8gd0//uPj4c1EQua8Q+MViT0/w==
 
+es6-promisify@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/es6-promisify/-/es6-promisify-5.0.0.tgz#5109d62f3e56ea967c4b63505aef08291c8a5203"
+  integrity sha1-UQnWLz5W6pZ8S2NQWu8IKRyKUgM=
+  dependencies:
+    es6-promise "^4.0.3"
+
 es6-symbol@^3.1.1, es6-symbol@~3.1.3:
   version "3.1.3"
   resolved "https://registry.yarnpkg.com/es6-symbol/-/es6-symbol-3.1.3.tgz#bad5d3c1bcdac28269f4cb331e431c78ac705d18"
@@ -3809,7 +3845,7 @@ expand-tilde@^2.0.0, expand-tilde@^2.0.2:
   dependencies:
     homedir-polyfill "^1.0.1"
 
-express@^4.16.3, express@^4.17.1:
+express@^4.16.2, express@^4.16.3, express@^4.17.1:
   version "4.17.1"
   resolved "https://registry.yarnpkg.com/express/-/express-4.17.1.tgz#4491fc38605cf51f8629d39c2b5d026f98a4c134"
   integrity sha512-mHJ9O79RqluphRrcw2X/GTh3k9tVv8YcoyY4Kkh4WDMUYKRZUq0h1o0w2rrrxBqM7VoeUVqgb27xlEMXTnYt4g==
@@ -3886,6 +3922,16 @@ extglob@^2.0.4:
     snapdragon "^0.8.1"
     to-regex "^3.0.1"
 
+extract-zip@^1.6.6:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/extract-zip/-/extract-zip-1.7.0.tgz#556cc3ae9df7f452c493a0cfb51cc30277940927"
+  integrity sha512-xoh5G1W/PB0/27lXgMQyIhP5DSY/LhoCsOyZgb+6iMmRtCwVBo55uKaMoEYrDCKQhWvqEip5ZPKAc6eFNyf/MA==
+  dependencies:
+    concat-stream "^1.6.2"
+    debug "^2.6.9"
+    mkdirp "^0.5.4"
+    yauzl "^2.10.0"
+
 extsprintf@1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.3.0.tgz#96918440e3041a7a414f8c52e3c574eb3c3e1e05"
@@ -3965,6 +4011,13 @@ faye-websocket@~0.11.1:
   dependencies:
     websocket-driver ">=0.5.1"
 
+fd-slicer@~1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/fd-slicer/-/fd-slicer-1.1.0.tgz#25c7c89cb1f9077f8891bbe61d8f390eae256f1e"
+  integrity sha1-JcfInLH5B3+IkbvmHY85Dq4lbx4=
+  dependencies:
+    pend "~1.2.0"
+
 figgy-pudding@^3.5.1:
   version "3.5.2"
   resolved "https://registry.yarnpkg.com/figgy-pudding/-/figgy-pudding-3.5.2.tgz#b4eee8148abb01dcf1d1ac34367d59e12fa61d6e"
@@ -4778,7 +4831,7 @@ html-entities@^1.3.1:
   resolved "https://registry.yarnpkg.com/html-entities/-/html-entities-1.3.1.tgz#fb9a1a4b5b14c5daba82d3e34c6ae4fe701a0e44"
   integrity sha512-rhE/4Z3hIhzHAUKbW8jVcCyuT5oJCXXqhN/6mXXVCpzTmvJnoH2HL/bt3EZ6p55jbFJBeAe1ZNpL5BugLujxNA==
 
-html-minifier@^3.2.3:
+html-minifier@^3.2.3, html-minifier@^3.5.16:
   version "3.5.21"
   resolved "https://registry.yarnpkg.com/html-minifier/-/html-minifier-3.5.21.tgz#d0040e054730e354db008463593194015212d20c"
   integrity sha512-LKUKwuJDhxNa3uf/LPR/KVjm/l3rBqtYeCOAekvG8F1vItxMUpueGd94i/asDDr8/1u7InxzFA5EeGjhhG5mMA==
@@ -4873,7 +4926,17 @@ http-proxy-middleware@0.19.1:
     lodash "^4.17.11"
     micromatch "^3.1.10"
 
-http-proxy@^1.17.0:
+http-proxy-middleware@^0.18.0:
+  version "0.18.0"
+  resolved "https://registry.yarnpkg.com/http-proxy-middleware/-/http-proxy-middleware-0.18.0.tgz#0987e6bb5a5606e5a69168d8f967a87f15dd8aab"
+  integrity sha512-Fs25KVMPAIIcgjMZkVHJoKg9VcXcC1C8yb9JUgeDvVXY0S/zgVIhMb+qVswDIgtJe2DfckMSY2d6TuTEutlk6Q==
+  dependencies:
+    http-proxy "^1.16.2"
+    is-glob "^4.0.0"
+    lodash "^4.17.5"
+    micromatch "^3.1.9"
+
+http-proxy@^1.16.2, http-proxy@^1.17.0:
   version "1.18.1"
   resolved "https://registry.yarnpkg.com/http-proxy/-/http-proxy-1.18.1.tgz#401541f0534884bbf95260334e72f88ee3976549"
   integrity sha512-7mz/721AbnJwIVbnaSv1Cz3Am0ZLT/UBwkC92VlxhXv/k/BBQfM2fXElQNC27BVGr0uwUpplYPQM9LnaBMR5NQ==
@@ -4896,6 +4959,14 @@ https-browserify@^1.0.0:
   resolved "https://registry.yarnpkg.com/https-browserify/-/https-browserify-1.0.0.tgz#ec06c10e0a34c0f2faf199f7fd7fc78fffd03c73"
   integrity sha1-7AbBDgo0wPL68Zn3/X/Hj//QPHM=
 
+https-proxy-agent@^2.2.1:
+  version "2.2.4"
+  resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-2.2.4.tgz#4ee7a737abd92678a293d9b34a1af4d0d08c787b"
+  integrity sha512-OmvfoQ53WLjtA9HeYP9RNrWMJzzAz1JGaSFr1nijg0PVR1JaD/xbJq1mdEIIlxGpXp9eSe/O2LgU9DJmTPd0Eg==
+  dependencies:
+    agent-base "^4.3.0"
+    debug "^3.1.0"
+
 human-signals@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/human-signals/-/human-signals-1.1.1.tgz#c5b1cd14f50aeae09ab6c59fe63ba3395fe4dfa3"
@@ -5890,6 +5961,11 @@ lodash@^4.0.0, lodash@^4.17.11, lodash@^4.17.13, lodash@^4.17.14, lodash@^4.17.1
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
   integrity sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==
 
+lodash@^4.17.5:
+  version "4.17.19"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.19.tgz#e48ddedbe30b3321783c5b4301fbd353bc1e4a4b"
+  integrity sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==
+
 log-symbols@^2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-2.2.0.tgz#5740e1c5d6f0dfda4ad9323b5332107ef6b4c40a"
@@ -6092,7 +6168,7 @@ methods@~1.1.2:
   resolved "https://registry.yarnpkg.com/methods/-/methods-1.1.2.tgz#5529a4d67654134edcc5266656835b0f851afcee"
   integrity sha1-VSmk1nZUE07cxSZmVoNbD4Ua/O4=
 
-micromatch@^3.0.4, micromatch@^3.1.10, micromatch@^3.1.4:
+micromatch@^3.0.4, micromatch@^3.1.10, micromatch@^3.1.4, micromatch@^3.1.9:
   version "3.1.10"
   resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-3.1.10.tgz#70859bc95c9840952f359a068a3fc49f9ecfac23"
   integrity sha512-MWikgl9n9M3w+bpsY3He8L+w9eF9338xRl8IAO5viDizwSzziFEyUzo2xrrloB64ADbTf8uA8vRqqttDTOmccg==
@@ -6278,7 +6354,7 @@ mixin-deep@^1.2.0:
     for-in "^1.0.2"
     is-extendable "^1.0.1"
 
-"mkdirp@>=0.5 0", mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@^0.5.3, mkdirp@~0.5.1:
+"mkdirp@>=0.5 0", mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@^0.5.3, mkdirp@^0.5.4, mkdirp@^0.5.5, mkdirp@~0.5.1:
   version "0.5.5"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.5.tgz#d91cefd62d1436ca0f41620e251288d420099def"
   integrity sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==
@@ -7197,6 +7273,11 @@ pdfjs-dist@^2.5.207:
   resolved "https://registry.yarnpkg.com/pdfjs-dist/-/pdfjs-dist-2.5.207.tgz#b5e8c19627be64269cd3fb6df3eaaf45ddffe7b6"
   integrity sha512-xGDUhnCYPfHy+unMXCLCJtlpZaaZ17Ew3WIL0tnSgKFUZXHAPD49GO9xScyszSsQMoutNDgRb+rfBXIaX/lJbw==
 
+pend@~1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/pend/-/pend-1.2.0.tgz#7a57eb550a6783f9115331fcf4663d5c8e007a50"
+  integrity sha1-elfrVQpng/kRUzH89GY9XI4AelA=
+
 perfect-scrollbar@^1.5.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/perfect-scrollbar/-/perfect-scrollbar-1.5.0.tgz#821d224ed8ff61990c23f26db63048cdc75b6b83"
@@ -7292,6 +7373,15 @@ pngjs@^3.3.0:
   resolved "https://registry.yarnpkg.com/pngjs/-/pngjs-3.4.0.tgz#99ca7d725965fb655814eaf65f38f12bbdbf555f"
   integrity sha512-NCrCHhWmnQklfH4MtJMRjZ2a8c80qXeMlQMv2uVp9ISJMTt562SbGd6n2oq0PaPgKm7Z6pL9E2UlLIhC+SHL3w==
 
+portfinder@^1.0.13:
+  version "1.0.28"
+  resolved "https://registry.yarnpkg.com/portfinder/-/portfinder-1.0.28.tgz#67c4622852bd5374dd1dd900f779f53462fac778"
+  integrity sha512-Se+2isanIcEqf2XMHjyUKskczxbPH7dQnlMjXX6+dybayyHvAf/TCgyMRlzf/B6QDhAEFOGes0pzRo3by4AbMA==
+  dependencies:
+    async "^2.6.2"
+    debug "^3.1.1"
+    mkdirp "^0.5.5"
+
 portfinder@^1.0.20, portfinder@^1.0.26:
   version "1.0.26"
   resolved "https://registry.yarnpkg.com/portfinder/-/portfinder-1.0.26.tgz#475658d56ca30bed72ac7f1378ed350bd1b64e70"
@@ -7668,6 +7758,15 @@ prepend-http@^1.0.0:
   resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-1.0.4.tgz#d4f4562b0ce3696e41ac52d0e002e57a635dc6dc"
   integrity sha1-1PRWKwzjaW5BrFLQ4ALlemNdxtw=
 
+prerender-spa-plugin@^3.4.0:
+  version "3.4.0"
+  resolved "https://registry.yarnpkg.com/prerender-spa-plugin/-/prerender-spa-plugin-3.4.0.tgz#332f55e68e1bba68bcf176d8c8dfc8380c5dee8a"
+  integrity sha512-4Gtu7XIz5p0VBi1527c/ogu0NNcM5kJPG9q3F26SioeeURVbIJ11B6fuK8pxTmlPqffKPR/2TRRf4o020r4Fqw==
+  dependencies:
+    "@prerenderer/prerenderer" "^0.7.2"
+    "@prerenderer/renderer-puppeteer" "^0.2.0"
+    html-minifier "^3.5.16"
+
 prettier@^1.18.2:
   version "1.19.1"
   resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.19.1.tgz#f7d7f5ff8a9cd872a7be4ca142095956a60797cb"
@@ -7716,11 +7815,21 @@ process@~0.5.1:
   resolved "https://registry.yarnpkg.com/process/-/process-0.5.2.tgz#1638d8a8e34c2f440a91db95ab9aeb677fc185cf"
   integrity sha1-FjjYqONML0QKkduVq5rrZ3/Bhc8=
 
+progress@^2.0.1:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/progress/-/progress-2.0.3.tgz#7e8cf8d8f5b8f239c1bc68beb4eb78567d572ef8"
+  integrity sha512-7PiHtLll5LdnKIMw100I+8xJXR5gW2QwWYkT6iJva0bXitZKa/XMrSbdmg3r2Xnaidz9Qumd0VPaMrZlF9V9sA==
+
 promise-inflight@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/promise-inflight/-/promise-inflight-1.0.1.tgz#98472870bf228132fcbdd868129bad12c3c029e3"
   integrity sha1-mEcocL8igTL8vdhoEputEsPAKeM=
 
+promise-limit@^2.5.0:
+  version "2.7.0"
+  resolved "https://registry.yarnpkg.com/promise-limit/-/promise-limit-2.7.0.tgz#eb5737c33342a030eaeaecea9b3d3a93cb592b26"
+  integrity sha512-7nJ6v5lnJsXwGprnGXga4wx6d1POjvi5Qmf1ivTRxTjH4Z/9Czja/UCMLVmB9N93GeWOU93XaFaEt6jbuoagNw==
+
 proxy-addr@~2.0.5:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/proxy-addr/-/proxy-addr-2.0.6.tgz#fdc2336505447d3f2f2c638ed272caf614bbb2bf"
@@ -7729,6 +7838,11 @@ proxy-addr@~2.0.5:
     forwarded "~0.1.2"
     ipaddr.js "1.9.1"
 
+proxy-from-env@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/proxy-from-env/-/proxy-from-env-1.1.0.tgz#e102f16ca355424865755d2c9e8ea4f24d58c3e2"
+  integrity sha512-D+zkORCbA9f1tdWRK0RaCR3GPv50cMxcrz4X8k5LTSUD1Dkw47mKJEZQNunItRTkWwgtaUSo1RVFRIG9ZXiFYg==
+
 prr@~1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/prr/-/prr-1.0.1.tgz#d3fc114ba06995a45ec6893f484ceb1d78f5f476"
@@ -7796,6 +7910,20 @@ punycode@^1.2.4:
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.4.1.tgz#c0d5a63b2718800ad8e1eb0fa5269c84dd41845e"
   integrity sha1-wNWmOycYgArY4esPpSachN1BhF4=
 
+puppeteer@^1.7.0:
+  version "1.20.0"
+  resolved "https://registry.yarnpkg.com/puppeteer/-/puppeteer-1.20.0.tgz#e3d267786f74e1d87cf2d15acc59177f471bbe38"
+  integrity sha512-bt48RDBy2eIwZPrkgbcwHtb51mj2nKvHOPMaSH2IsWiv7lOG9k9zhaRzpDZafrk05ajMc3cu+lSQYYOfH2DkVQ==
+  dependencies:
+    debug "^4.1.0"
+    extract-zip "^1.6.6"
+    https-proxy-agent "^2.2.1"
+    mime "^2.0.3"
+    progress "^2.0.1"
+    proxy-from-env "^1.0.0"
+    rimraf "^2.6.1"
+    ws "^6.1.0"
+
 q@^1.1.2:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/q/-/q-1.5.1.tgz#7e32f75b41381291d04611f1bf14109ac00651d7"
@@ -10418,7 +10546,7 @@ wrappy@1:
   resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"
   integrity sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=
 
-ws@^6.0.0, ws@^6.2.1:
+ws@^6.0.0, ws@^6.1.0, ws@^6.2.1:
   version "6.2.1"
   resolved "https://registry.yarnpkg.com/ws/-/ws-6.2.1.tgz#442fdf0a47ed64f59b6a5d8ff130f4748ed524fb"
   integrity sha512-GIyAXC2cB7LjvpgMt9EKS2ldqr0MTrORaleiOno6TweZ6r3TKtoFQWay/2PceJ3RuBasOHzXNn5Lrw1X0bEjqA==
@@ -10564,6 +10692,14 @@ yargs@^7.1.0:
     y18n "^3.2.1"
     yargs-parser "5.0.0-security.0"
 
+yauzl@^2.10.0:
+  version "2.10.0"
+  resolved "https://registry.yarnpkg.com/yauzl/-/yauzl-2.10.0.tgz#c7eb17c93e112cb1086fa6d8e51fb0667b79a5f9"
+  integrity sha1-x+sXyT4RLLEIb6bY5R+wZnt5pfk=
+  dependencies:
+    buffer-crc32 "~0.2.3"
+    fd-slicer "~1.1.0"
+
 zrender@4.3.1:
   version "4.3.1"
   resolved "https://registry.yarnpkg.com/zrender/-/zrender-4.3.1.tgz#baf8aa6dc8187a2f819692d7d5f9bedfa2b90fa3"