diff --git a/.gitignore b/.gitignore
--- a/.gitignore
+++ b/.gitignore
@@ -20,6 +20,7 @@
 swh/web/static/js/
 swh/web/static/css/
 swh/web/static/fonts/
+swh/web/static/jssources/
 .cache-loader/
 build/
 dist/
diff --git a/package.json b/package.json
--- a/package.json
+++ b/package.json
@@ -68,6 +68,7 @@
     "robotstxt-webpack-plugin": "^5.0.0",
     "sass-loader": "^7.1.0",
     "showdown": "^1.9.0",
+    "spdx-expression-parse": "^3.0.0",
     "style-loader": "^0.23.1",
     "stylelint": "^9.10.1",
     "stylelint-config-standard": "^18.2.0",
diff --git a/swh/web/assets/config/webpack-plugins/generate-weblabels-webpack-plugin/index.js b/swh/web/assets/config/webpack-plugins/generate-weblabels-webpack-plugin/index.js
new file mode 100644
--- /dev/null
+++ b/swh/web/assets/config/webpack-plugins/generate-weblabels-webpack-plugin/index.js
@@ -0,0 +1,369 @@
+/**
+ * Copyright (C) 2019  The Software Heritage developers
+ * See the AUTHORS file at the top-level directory of this distribution
+ * License: GNU Affero General Public License version 3, or any later version
+ * See top-level LICENSE file for more information
+ */
+
+// This is a first draft of a plugin for Webpack >= 4 enabling to generate a WebLabels
+// page to be used with the LibreJS Firefox plugin (https://www.gnu.org/software/librejs/).
+// The purpose of the WebLabels page is to prevent the loading of the generated
+// assets being blocked by the LibreJS Firefox plugin in client browsers.
+// To do so, the page must contain the following information. For each JavaScript asset
+// generated by webpack, all bundled source files in it need to be referenced along
+// with their licenses but also a link to their non-minified source code.
+
+// The plugin works by processing the compilation statistics available after the whole
+// webpack processing and currently does the following:
+//
+//   - it copies all non-minified source files bundles into the generated JavaScript
+//     assets into a directory located into the webpack output folder.
+//
+//   - it generates a weblabels.json file into a directory located into the
+//     webpack output folder. This JSON file should be used with an HTML template
+//     engine to generate the WebLabels page and it has the following structure:
+//
+//     {
+//        "<js_asset_static_path>": [{
+//          "id": "<bundled_source_file_identifier>",
+//          "path": "<path_to_non_minified_source_file>"
+//          "license": {
+//            "name": "<license_name_librejs_compliant>",
+//            "url": "<license_text_url_librejs_compliant>",
+//            "copy_url": "<original_license_text_url>",
+//          },
+//          "static_url": "<link_to_non_minified_source_code>"
+//        }, {
+//          ...
+//        }],
+//        "<other_js_asset_static_path>": [
+//          ...
+//        ],
+//        ...
+//     }
+//
+//     So for each JavaScript asset generated by Webpack, the JSON file references
+//     all the source code files bundled in it along with the detected licenses
+//     and a link to download the non-minified source codes.
+//     For each referenced source file, its path corresponds to the relative
+//     path from the webpack project root folder, while its identifier corresponds
+//     to the path without the './' or './node_modules/' prefix.
+
+// The following options can be provided to the plugin:
+//
+//  - outputDir: Specify the directory inside the webpack output folder in which
+//               the weblabels JSON file and the js sources will be emitted.
+//               The default value is 'jssources'.
+//
+//  - exclude: An array of module name prefixes to exclude from the generated output.
+//             If the prefix does not start with './', it is considered as a node module.
+//
+//  - srcReplace: An object mapping source files to replace in the generated output.
+//                This should be used when a node module points to its minified version
+//                by default.
+//
+//  - licenseOverride: An object mapping source files to their corresponding SPDX licenses.
+//                     This should be used when you have source files inside your webpack
+//                     project source tree with licenses different from the one of your
+//                     project. It must have the following structure:
+//
+//                     {
+//                        "<js_src_file_path>": {
+//                          "name": "<spdx_license_id>",
+//                          "path": "<path_to_license_file>"
+//                        },
+//                        ...
+//                     }
+//
+//  - additionalScripts: An object declaring additional js scripts loaded by your web
+//                       application but not processed by webpack. It must have the
+//                       following structure:
+//
+//                       {
+//                          "<js_asset_static_path>": [{
+//                            "id": "<bundled_source_file_identifier>",
+//                            "path": "<path_to_non_minified_source_file>"
+//                            "license": {
+//                              "name": "<spdx_license_id>",
+//                              "path": "<path_to_license_file>"
+//                            }
+//                          }, {
+//                            ...
+//                          }],
+//                          ...
+//                        }
+
+const fs = require('fs');
+const path = require('path');
+const spdxParse = require('spdx-expression-parse');
+const spdxLicensesMapping = require('./spdx-licenses-mapping');
+
+class GenerateWebLabelsPlugin {
+
+  constructor(opts) {
+    this.options = opts || {};
+    this.weblabelsDirName = this.options['outputDir'] || 'jssources';
+    // source file extension handled by webpack and compiled to js
+    this.srcExts = ['js', 'ts', 'coffee', 'lua'];
+    this.srcExtsRegexp = new RegExp('^.*.(' + this.srcExts.join('|') + ')$');
+    this.chunkNameToJsAsset = {};
+    this.chunkJsAssetToSrcFiles = {};
+    this.packageJsonCache = {};
+    this.packageLicenseFile = {};
+    this.exclude = [];
+    this.copiedFiles = new Set();
+    // populate module prefix patterns to exclude
+    if (Array.isArray(this.options['exclude'])) {
+      this.options['exclude'].forEach(toExclude => {
+        if (!toExclude.startsWith('.')) {
+          this.exclude.push('./' + path.join('node_modules', toExclude));
+        } else {
+          this.exclude.push(toExclude);
+        }
+      });
+    }
+  }
+
+  apply(compiler) {
+    compiler.hooks.done.tap('GenerateWebLabelsPlugin', statsObj => {
+
+      // get the stats object in JSON format
+      let stats = statsObj.toJson();
+      this.stats = stats;
+
+      // set output folder
+      this.weblabelsOutputDir = path.join(stats.outputPath, this.weblabelsDirName);
+      this.recursiveMkdir(this.weblabelsOutputDir);
+
+      // map each generated webpack chunk to its js asset
+      Object.keys(stats.assetsByChunkName).forEach((chunkName, i) => {
+        if (Array.isArray(stats.assetsByChunkName[chunkName])) {
+          for (let asset of stats.assetsByChunkName[chunkName]) {
+            if (asset.endsWith('.js')) {
+              this.chunkNameToJsAsset[chunkName] = asset;
+              this.chunkNameToJsAsset[i] = asset;
+              break;
+            }
+          }
+        } else if (stats.assetsByChunkName[chunkName].endsWith('.js')) {
+          this.chunkNameToJsAsset[chunkName] = stats.assetsByChunkName[chunkName];
+          this.chunkNameToJsAsset[i] = stats.assetsByChunkName[chunkName];
+        }
+      });
+
+      // iterate on all bundled webpack modules
+      stats.modules.forEach(mod => {
+
+        let srcFilePath = mod.name;
+
+        if (!this.srcExtsRegexp.test(srcFilePath)) {
+          return;
+        }
+
+        // do not process modules unrelated to a source file
+        if (!srcFilePath.startsWith('./')) {
+          return;
+        }
+
+        // do not process modules in the exclusion list
+        for (let toExclude of this.exclude) {
+          if (srcFilePath.startsWith(toExclude)) {
+            return;
+          }
+        }
+
+        // iterate on all chunks containing the module
+        mod.chunks.forEach(chunk => {
+
+          let chunkJsAsset = stats.publicPath + this.chunkNameToJsAsset[chunk];
+
+          // init the chunk to source files mapping if needed
+          if (!this.chunkJsAssetToSrcFiles.hasOwnProperty(chunkJsAsset)) {
+            this.chunkJsAssetToSrcFiles[chunkJsAsset] = [];
+          }
+          // check if the source file needs to be replaces
+          if (this.options['srcReplace'] && this.options['srcReplace'].hasOwnProperty(srcFilePath)) {
+            srcFilePath = this.options['srcReplace'][srcFilePath];
+          }
+
+          // init source file metadata
+          let srcFileData = {'id': this.cleanupPath(srcFilePath),
+                             'path': srcFilePath};
+
+          // find and parse the corresponding package.json file
+          let packageJsonPath;
+          let nodeModule = srcFilePath.startsWith('./node_modules/');
+          if (nodeModule) {
+            packageJsonPath = this.findPackageJsonPath(srcFilePath);
+          } else {
+            packageJsonPath = './package.json';
+          }
+          let packageJson = this.parsePackageJson(packageJsonPath);
+
+          // extract license information, overriding it if needed
+          let licenseFilePath;
+          if (this.options['licenseOverride'] && this.options['licenseOverride'].hasOwnProperty(srcFilePath)) {
+            let licenseSpdxId = this.options['licenseOverride'][srcFilePath]['name'];
+            licenseFilePath = this.options['licenseOverride'][srcFilePath]['path'];
+            srcFileData['license'] = this.spdxToWebLabelsLicense(licenseSpdxId);
+            srcFileData['license']['copy_url'] = this.copyLicenseFile(licenseFilePath);
+          } else {
+            srcFileData['license'] = this.extractLicenseInformation(packageJson);
+            let licenseDir = path.join(...packageJsonPath.split('/').slice(0, -1));
+            licenseFilePath = this.findLicenseFile(licenseDir);
+          }
+
+          // copy original license file and get its static url
+          srcFileData['license']['copy_url'] = this.copyLicenseFile(licenseFilePath);
+
+          // generate static url for downloading non-minified source code
+          srcFileData['static_url'] = stats.publicPath + path.join(this.weblabelsDirName, srcFileData['id']);
+
+          // add source file metadata to the webpack chunk
+          this.chunkJsAssetToSrcFiles[chunkJsAsset].push(srcFileData);
+          // copy non-minified source to output folder
+          this.copyFileToOutputPath(srcFilePath);
+        });
+      });
+
+      // process additional scripts if needed
+      if (this.options['additionalScripts']) {
+        for (let script of Object.keys(this.options['additionalScripts'])) {
+          this.chunkJsAssetToSrcFiles[script] = [];
+          for (let scriptSrc of this.options['additionalScripts'][script]) {
+            let licenceFilePath = scriptSrc['license']['path'];
+            scriptSrc['license'] = this.spdxToWebLabelsLicense(scriptSrc['license']['name']);
+            scriptSrc['license']['copy_url'] = this.copyLicenseFile(licenceFilePath);
+            scriptSrc['static_url'] = stats.publicPath + path.join(this.weblabelsDirName, scriptSrc['id']);
+            this.chunkJsAssetToSrcFiles[script].push(scriptSrc);
+            this.copyFileToOutputPath(scriptSrc['path']);
+          }
+        }
+      }
+
+      // generate the weblabels.json file
+      let weblabelsData = JSON.stringify(this.chunkJsAssetToSrcFiles);
+      let weblabelsJsonFile = path.join(this.weblabelsOutputDir, 'weblabels.json');
+      fs.writeFileSync(weblabelsJsonFile, weblabelsData);
+    });
+  }
+
+  cleanupPath(moduleFilePath) {
+    return moduleFilePath.replace(/^[./]*node_modules\//, '').replace(/^.\//, '');
+  }
+
+  findPackageJsonPath(srcFilePath) {
+    let pathSplit = srcFilePath.split('/');
+    let packageJsonPath;
+    for (let i = 3; i < pathSplit.length; ++i) {
+      packageJsonPath = path.join(...pathSplit.slice(0, i), 'package.json');
+      if (fs.existsSync(packageJsonPath)) {
+        break;
+      }
+    }
+    return packageJsonPath;
+  }
+
+  findLicenseFile(packageJsonDir) {
+    if (!this.packageLicenseFile.hasOwnProperty(packageJsonDir)) {
+      let foundLicenseFile;
+      fs.readdirSync(packageJsonDir).forEach(file => {
+        if (foundLicenseFile) {
+          return;
+        }
+        if (file.toLowerCase().startsWith('license')) {
+          foundLicenseFile = path.join(packageJsonDir, file);
+        }
+      });
+      this.packageLicenseFile[packageJsonDir] = foundLicenseFile;
+    }
+    return this.packageLicenseFile[packageJsonDir];
+  }
+
+  copyLicenseFile(licenseFilePath) {
+    let licenseCopyPath = '';
+    if (fs.existsSync(licenseFilePath)) {
+      let ext = '';
+      // add a .txt extension in order to serve license file with text/plain
+      // content type to client browsers
+      if (licenseFilePath.toLowerCase().indexOf('license.') === -1) {
+        ext = '.txt';
+      }
+      this.copyFileToOutputPath(licenseFilePath, ext);
+      licenseFilePath = this.cleanupPath(licenseFilePath);
+      licenseCopyPath = this.stats.publicPath + path.join(this.weblabelsDirName, licenseFilePath + ext);
+    }
+    return licenseCopyPath;
+  }
+
+  parsePackageJson(packageJsonPath) {
+    if (!this.packageJsonCache.hasOwnProperty(packageJsonPath)) {
+      let packageJsonStr = fs.readFileSync(packageJsonPath).toString('utf8');
+      this.packageJsonCache[packageJsonPath] = JSON.parse(packageJsonStr);
+    }
+    return this.packageJsonCache[packageJsonPath];
+  }
+
+  spdxToWebLabelsLicense(spdxLicenceId) {
+    for (let i = 0; i < spdxLicensesMapping.length; ++i) {
+      if (spdxLicensesMapping[i]['spdx_ids'].indexOf(spdxLicenceId) !== -1) {
+        let licenseData = Object.assign({}, spdxLicensesMapping[i]);
+        delete licenseData['spdx_ids'];
+        delete licenseData['magnet_link'];
+        licenseData['copy_url'] = '';
+        return licenseData;
+      }
+    }
+    return undefined;
+  }
+
+  extractLicenseInformation(packageJson) {
+    let licenseStr;
+    if (packageJson.hasOwnProperty('license')) {
+      licenseStr = packageJson['license'];
+    } else if (packageJson.hasOwnProperty('licenses')) {
+      let licenses = packageJson['licenses'];
+      if (Array.isArray(licenses)) {
+        let l = [];
+        licenses.forEach(license => {
+          l.push(license['type']);
+        });
+        licenseStr = l.join(' OR ');
+      } else {
+        licenseStr = licenses['type'];
+      }
+    }
+    let license = spdxParse(licenseStr)['license'];
+    let licenseData = this.spdxToWebLabelsLicense(license);
+    if (licenseData) {
+      return licenseData;
+    } else {
+      return {'name': license};
+    }
+  }
+
+  copyFileToOutputPath(srcFilePath, ext = '') {
+    if (this.copiedFiles.has(srcFilePath)) {
+      return;
+    }
+    let destPath = this.cleanupPath(srcFilePath);
+    let destDir = path.join(this.weblabelsOutputDir, ...destPath.split('/').slice(0, -1));
+    this.recursiveMkdir(destDir);
+    destPath = path.join(this.weblabelsOutputDir, destPath + ext);
+    fs.copyFileSync(srcFilePath, destPath);
+    this.copiedFiles.add(srcFilePath);
+  }
+
+  recursiveMkdir(destPath) {
+    let destPathSplit = destPath.split('/');
+    for (let i = 1; i < destPathSplit.length; ++i) {
+      let currentPath = path.join('/', ...destPathSplit.slice(0, i + 1));
+      if (!fs.existsSync(currentPath)) {
+        fs.mkdirSync(currentPath);
+      }
+    }
+  }
+
+};
+
+module.exports = GenerateWebLabelsPlugin;
diff --git a/swh/web/assets/config/webpack-plugins/generate-weblabels-webpack-plugin/spdx-licenses-mapping.js b/swh/web/assets/config/webpack-plugins/generate-weblabels-webpack-plugin/spdx-licenses-mapping.js
new file mode 100644
--- /dev/null
+++ b/swh/web/assets/config/webpack-plugins/generate-weblabels-webpack-plugin/spdx-licenses-mapping.js
@@ -0,0 +1,135 @@
+/**
+ * Copyright (C) 2019  The Software Heritage developers
+ * See the AUTHORS file at the top-level directory of this distribution
+ * License: GNU Affero General Public License version 3, or any later version
+ * See top-level LICENSE file for more information
+ */
+
+module.exports = [
+  {
+    'name': 'Apache License, Version 2.0',
+    'url': 'http://www.apache.org/licenses/LICENSE-2.0',
+    'magnet_link': 'magnet:?xt=urn:btih:8e4f440f4c65981c5bf93c76d35135ba5064d8b7&dn=apache-2.0.txt',
+    'spdx_ids': ['Apache-2.0']
+  },
+  {
+    'name': 'Artistic License 2.0',
+    'url': 'http://www.perlfoundation.org/artistic_license_2_0',
+    'magnet_link': 'magnet:?xt=urn:btih:54fd2283f9dbdf29466d2df1a98bf8f65cafe314&dn=artistic-2.0.txt',
+    'spdx_ids': ['Artistic-2.0']
+  },
+  {
+    'name': 'Boost Software License',
+    'url': 'http://www.boost.org/LICENSE_1_0.txt',
+    'magnet_link': 'magnet:?xt=urn:btih:89a97c535628232f2f3888c2b7b8ffd4c078cec0&dn=Boost-1.0.txt',
+    'spdx_ids': ['BSL-1.0']
+  },
+  {
+    'name': 'BSD 3-Clause License',
+    'url': 'http://opensource.org/licenses/BSD-3-Clause',
+    'magnet_link': 'magnet:?xt=urn:btih:c80d50af7d3db9be66a4d0a86db0286e4fd33292&dn=bsd-3-clause.txt',
+    'spdx_ids': ['BSD-3-Clause']
+  },
+  {
+    'name': 'CPAL 1.0',
+    'url': 'http://opensource.org/licenses/cpal_1.0',
+    'magnet_link': 'magnet:?xt=urn:btih:84143bc45939fc8fa42921d619a95462c2031c5c&dn=cpal-1.0.txt',
+    'spdx_ids': ['CPAL-1.0']
+  },
+  {
+    'name': 'Creative Commons CC0 1.0 Universal',
+    'url': 'http://creativecommons.org/publicdomain/zero/1.0/legalcode',
+    'magnet_link': 'magnet:?xt=urn:btih:90dc5c0be029de84e523b9b3922520e79e0e6f08&dn=cc0.txt',
+    'spdx_ids': ['CC0-1.0']
+  },
+  {
+    'name': 'Eclipse Public License 1.0',
+    'url': 'http://www.eclipse.org/legal/epl-v10.html',
+    'magnet_link': 'magnet:?xt=urn:btih:4c6a2ad0018cd461e9b0fc44e1b340d2c1828b22&dn=epl-1.0.txt',
+    'spdx_ids': ['EPL-1.0']
+  },
+  {
+    'name': 'Expat License',
+    'url': 'http://www.jclark.com/xml/copying.txt',
+    'magnet_link': 'magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt',
+    'spdx_ids': ['MIT']
+  },
+  {
+    'name': 'FreeBSD License',
+    'url': 'http://www.freebsd.org/copyright/freebsd-license.html',
+    'magnet_link': 'magnet:?xt=urn:btih:87f119ba0b429ba17a44b4bffcab33165ebdacc0&dn=freebsd.txt',
+    'spdx_ids': ['BSD-2-Clause-FreeBSD']
+  },
+  {
+    'name': 'GNU General Public License (GPL) version 2',
+    'url': 'http://www.gnu.org/licenses/gpl-2.0.html',
+    'magnet_link': 'magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt',
+    'spdx_ids': ['GPL-2.0-only', 'GPL-2.0-or-later', 'GPL-2.0+', 'GPL-2.0']
+  },
+  {
+    'name': 'GNU General Public License (GPL) version 3',
+    'url': 'http://www.gnu.org/licenses/gpl-3.0.html',
+    'magnet_link': 'magnet:?xt=urn:btih:1f739d935676111cfff4b4693e3816e664797050&dn=gpl-3.0.txt',
+    'spdx_ids': ['GPL-3.0-only', 'GPL-3.0-or-later', 'GPL-3.0+', 'GPL-3.0']
+  },
+  {
+    'name': 'GNU Lesser General Public License, version 2.1',
+    'url': 'http://www.gnu.org/licenses/lgpl-2.1.html',
+    'magnet_link': 'magnet:?xt=urn:btih:5de60da917303dbfad4f93fb1b985ced5a89eac2&dn=lgpl-2.1.txt',
+    'spdx_ids': ['LGPL-2.1-only', 'LGPL-2.1-or-later', 'LGPL-2.1+', 'LGPL-2.1']
+  },
+  {
+    'name': 'GNU Lesser General Public License, version 3',
+    'url': 'http://www.gnu.org/licenses/lgpl-3.0.html',
+    'magnet_link': 'magnet:?xt=urn:btih:0ef1b8170b3b615170ff270def6427c317705f85&dn=lgpl-3.0.txt',
+    'spdx_ids': ['LGPL-3.0-only', 'LGPL-3.0-or-later', 'LGPL-3.0+', 'LGPL-3.0']
+  },
+  {
+    'name': 'GNU Affero General Public License, version 3',
+    'url': 'http://www.gnu.org/licenses/agpl-3.0.html',
+    'magnet_link': 'magnet:?xt=urn:btih:0b31508aeb0634b347b8270c7bee4d411b5d4109&dn=agpl-3.0.txt',
+    'spdx_ids': ['AGPL-3.0-only', 'AGPL-3.0-or-later', 'AGPL-3.0+', 'AGPL-3.0']
+  },
+  {
+    'name': 'The ISC License',
+    'url': 'https://www.isc.org/downloads/software-support-policy/isc-license/',
+    'magnet_link': 'magnet:?xt=urn:btih:b8999bbaf509c08d127678643c515b9ab0836bae&dn=ISC.txt',
+    'spdx_ids': ['ISC']
+  },
+  {
+    'name': 'Mozilla Public License 2.0',
+    'url': 'http://www.mozilla.org/MPL/2.0',
+    'magnet_link': 'magnet:?xt=urn:btih:3877d6d54b3accd4bc32f8a48bf32ebc0901502a&dn=mpl-2.0.txt',
+    'spdx_ids': ['MPL-2.0']
+  },
+  {
+    'name': 'Universal Permissive License',
+    'url': 'https://oss.oracle.com/licenses/upl/',
+    'magnet_link': 'magnet:?xt=urn:btih:478974f4d41c3fa84c4befba25f283527fad107d&dn=upl-1.0.txt',
+    'spdx_ids': ['UPL-1.0']
+  },
+  {
+    'name': 'WTFPL',
+    'url': 'http://www.wtfpl.net/txt/copying/',
+    'magnet_link': 'magnet:?xt=urn:btih:723febf9f6185544f57f0660a41489c7d6b4931b&dn=wtfpl.txt',
+    'spdx_ids': ['WTFPL']
+  },
+  {
+    'name': 'Unlicense',
+    'url': 'http://unlicense.org/UNLICENSE',
+    'magnet_link': 'magnet:?xt=urn:btih:5ac446d35272cc2e4e85e4325b146d0b7ca8f50c&dn=unlicense.txt',
+    'spdx_ids': ['Unlicense']
+  },
+  {
+    'name': 'X11 License',
+    'url': 'http://www.xfree86.org/3.3.6/COPYRIGHT2.html#3',
+    'magnet_link': 'magnet:?xt=urn:btih:5305d91886084f776adcf57509a648432709a7c7&dn=x11.txt',
+    'spdx_ids': ['X11']
+  },
+  {
+    'name': 'XFree86 License',
+    'url': 'http://www.xfree86.org/current/LICENSE4.html',
+    'magnet_link': 'magnet:?xt=urn:btih:12f2ec9e8de2a3b0002a33d518d6010cc8ab2ae9&dn=xfree86.txt',
+    'spdx_ids': ['XFree86-1.1']
+  }
+];
diff --git a/swh/web/assets/config/webpack.config.development.js b/swh/web/assets/config/webpack.config.development.js
--- a/swh/web/assets/config/webpack.config.development.js
+++ b/swh/web/assets/config/webpack.config.development.js
@@ -17,6 +17,7 @@
 const MiniCssExtractPlugin = require('mini-css-extract-plugin');
 const RemoveSourceMapUrlPlugin = require('./webpack-plugins/remove-source-map-url-webpack-plugin');
 const CopyWebpackPlugin = require('copy-webpack-plugin');
+const GenerateWebLabelsPlugin = require('./webpack-plugins/generate-weblabels-webpack-plugin');
 
 // are we running webpack-dev-server ?
 const isDevServer = process.argv.find(v => v.includes('webpack-dev-server'));
@@ -304,7 +305,8 @@
   // webpack plugins
   plugins: [
     // cleanup previously generated assets
-    new CleanWebpackPlugin(['static/css', 'static/js', 'static/fonts', 'static/*.*'], {
+    new CleanWebpackPlugin(['static/css', 'static/js', 'static/fonts',
+                            'static/jssources', 'static/*.*'], {
       root: path.resolve(__dirname, '../../')
     }),
     // needed in order to use django_webpack_loader
@@ -349,7 +351,39 @@
     new CopyWebpackPlugin([{
       from: path.resolve(nodeModules, 'pdfjs-dist/build/pdf.worker.min.js'),
       to: path.resolve(__dirname, '../../static/js/')
-    }])
+    }]),
+    new GenerateWebLabelsPlugin({
+      exclude: ['mini-css-extract-plugin',
+                'bootstrap-loader'],
+      srcReplace: {
+        './node_modules/pdfjs-dist/build/pdf.min.js':
+        './node_modules/pdfjs-dist/build/pdf.js',
+        './node_modules/admin-lte/dist/js/adminlte.min.js':
+        './node_modules/admin-lte/dist/js/adminlte.js'
+      },
+      licenseOverride: {
+        './swh/web/assets/src/thirdparty/highlightjs-line-numbers/highlightjs-line-numbers.js': {
+          'name': 'MIT',
+          'path': './swh/web/assets/src/thirdparty/highlightjs-line-numbers/LICENSE'
+        },
+        './swh/web/assets/src/thirdparty/jquery.tabSlideOut/jquery.tabSlideOut.js': {
+          'name': 'GPL-3.0',
+          'path': './swh/web/assets/src/thirdparty/jquery.tabSlideOut/LICENSE'
+        }
+      },
+      additionalScripts: {
+        'js/pdf.worker.min.js': [
+          {
+            'id': 'pdfjs-dist/build/pdf.worker.js',
+            'path': './node_modules/pdfjs-dist/build/pdf.worker.js',
+            'license': {
+              'name': 'Apache-2.0',
+              'path': './node_modules/pdfjs-dist/LICENSE'
+            }
+          }
+        ]
+      }
+    })
   ],
   // webpack optimizations
   optimization: {
diff --git a/swh/web/assets/config/webpack.config.production.js b/swh/web/assets/config/webpack.config.production.js
--- a/swh/web/assets/config/webpack.config.production.js
+++ b/swh/web/assets/config/webpack.config.production.js
@@ -1,5 +1,5 @@
 /**
- * Copyright (C) 2018  The Software Heritage developers
+ * Copyright (C) 2018-2019  The Software Heritage developers
  * See the AUTHORS file at the top-level directory of this distribution
  * License: GNU Affero General Public License version 3, or any later version
  * See top-level LICENSE file for more information
@@ -38,5 +38,8 @@
   })
 ];
 
+// prevent modules concatenation for generating weblabels
+webpackProdConfig.optimization.concatenateModules = false;
+
 // webpack production configuration
 module.exports = webpackProdConfig;
diff --git a/swh/web/common/swh_templatetags.py b/swh/web/common/swh_templatetags.py
--- a/swh/web/common/swh_templatetags.py
+++ b/swh/web/common/swh_templatetags.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2017-2018  The Software Heritage developers
+# Copyright (C) 2017-2019  The Software Heritage developers
 # See the AUTHORS file at the top-level directory of this distribution
 # License: GNU Affero General Public License version 3, or any later version
 # See top-level LICENSE file for more information
@@ -166,3 +166,17 @@
             If the origin type is savable or not
     """
     return origin_type in get_savable_origin_types()
+
+
+@register.filter
+def split(value, arg):
+    """Django template filter to split a string.
+
+        Args:
+            value (str): the string to split
+            arg (str): the split separator
+
+        Returns:
+            list: the splitted string parts
+    """
+    return value.split(arg)
diff --git a/swh/web/templates/coverage.html b/swh/web/templates/coverage.html
--- a/swh/web/templates/coverage.html
+++ b/swh/web/templates/coverage.html
@@ -1,5 +1,5 @@
 {% comment %}
-Copyright (C) 2015-2018  The Software Heritage developers
+Copyright (C) 2015-2019  The Software Heritage developers
 See the AUTHORS file at the top-level directory of this distribution
 License: GNU Affero General Public License version 3, or any later version
 See top-level LICENSE file for more information
@@ -7,6 +7,7 @@
 
 <!DOCTYPE html>
 
+{% load js_reverse %}
 {% load static %}
 {% load render_bundle from webpack_loader %}
 
@@ -18,7 +19,31 @@
     <title>Software Heritage archive coverage</title>
     {% render_bundle 'vendors' %}
     {% render_bundle 'webapp' %}
-    <script src="{% url 'js_reverse' %}" type="text/javascript"></script>
+    <script>
+/*
+@licstart  The following is the entire license notice for the JavaScript code in this page.
+
+Copyright (C) 2015-2019  The Software Heritage developers
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as
+published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+@licend  The above is the entire license notice for the JavaScript code in this page.
+*/
+    </script>
+    <script type="text/javascript" charset="utf-8">
+      {% js_reverse_inline %}
+    </script>
     <base target="_parent">
   </head>
 
@@ -41,6 +66,7 @@
         </div>
       </div>
     </div>
+    <a href="{% url 'jslicenses' %}" rel="jslicense" style="display: none;">JavaScript license information</a>
   </body>
   {% if count_origins %}
     <script>
diff --git a/swh/web/templates/jslicenses.html b/swh/web/templates/jslicenses.html
new file mode 100644
--- /dev/null
+++ b/swh/web/templates/jslicenses.html
@@ -0,0 +1,61 @@
+{% extends "layout.html" %}
+
+{% comment %}
+Copyright (C) 2019  The Software Heritage developers
+See the AUTHORS file at the top-level directory of this distribution
+License: GNU Affero General Public License version 3, or any later version
+See top-level LICENSE file for more information
+{% endcomment %}
+
+{% load swh_templatetags %}
+
+{% block title %}JavaScript license information{% endblock %}
+
+{% block navbar-content %}
+<h4>JavaScript license information</h4>
+{% endblock %}
+
+{% block content %}
+<p>
+This page states the licenses of all the JavaScript files loaded by that web application.
+The loaded JavaScript files correspond to bundles concatenating multiple source files.
+You can find the details of the content of each bundle in the WebLabels table below.
+</p>
+<table id="jslicense-labels1" class="table swh-table swh-table-striped">
+  <thead>
+    <tr>
+      <th>Script</th>
+      <th>Licenses</th>
+      <th>Sources</th>
+    </tr>
+  </thead>
+  <tbody>
+  {% for jsasset, bundled_js_srcs in jslicenses_data %}
+    <tr>
+      <td>
+        <a href="{{ jsasset }}">{{ jsasset | split:"/" | last }}</a>
+      </td>
+      <td>
+        {% for js_src in bundled_js_srcs %}
+          <a href="{{ js_src.license.url }}">{{ js_src.license.name }}</a>
+          {% if  js_src.license.copy_url %}
+            (<a href="{{ js_src.license.copy_url }}">view</a>)
+          {% endif %}
+          {% if not forloop.last %}
+            <br/>
+          {% endif %}
+        {% endfor %}
+      </td>
+      <td>
+        {% for js_src in bundled_js_srcs %}
+          <a href="{{ js_src.static_url }}">{{ js_src.id }}</a>
+          {% if not forloop.last %}
+            <br/>
+          {% endif %}
+        {% endfor %}
+      </td>
+    </tr>
+  {% endfor %}
+  </tbody>
+</table>
+{% endblock %}
diff --git a/swh/web/templates/layout.html b/swh/web/templates/layout.html
--- a/swh/web/templates/layout.html
+++ b/swh/web/templates/layout.html
@@ -1,5 +1,5 @@
 {% comment %}
-Copyright (C) 2015-2018  The Software Heritage developers
+Copyright (C) 2015-2019  The Software Heritage developers
 See the AUTHORS file at the top-level directory of this distribution
 License: GNU Affero General Public License version 3, or any later version
 See top-level LICENSE file for more information
@@ -7,6 +7,7 @@
 
 <!DOCTYPE html>
 
+{% load js_reverse %}
 {% load static %}
 {% load render_bundle from webpack_loader %}
 {% load swh_templatetags %}
@@ -21,7 +22,32 @@
     {% render_bundle 'vendors' %}
     {% render_bundle 'webapp' %}
 
-    <script src="{% url 'js_reverse' %}" type="text/javascript"></script>
+    <script>
+/*
+@licstart  The following is the entire license notice for the JavaScript code in this page.
+
+Copyright (C) 2015-2019  The Software Heritage developers
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as
+published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+@licend  The above is the entire license notice for the JavaScript code in this page.
+*/
+    </script>
+
+    <script type="text/javascript" charset="utf-8">
+      {% js_reverse_inline %}
+    </script>
 
     {% block header %}{% endblock %}
 
@@ -30,6 +56,7 @@
     <link rel="apple-touch-icon-precomposed" href="{% static 'img/icons/swh-logo-archive-180x180.png' %}" />
     <link rel="search" type="application/opensearchdescription+xml" title="Software Heritage archive of public source code" href="{% static 'xml/swh-opensearch.xml' %}">
     <meta name="msapplication-TileImage" content="{% static 'img/icons/swh-logo-archive-270x270.png' %}" />
+
   </head>
 
   <body class="hold-transition sidebar-mini">
@@ -172,7 +199,8 @@
         <span class="link-color">Terms of use: </span>
         <a href="https://www.softwareheritage.org/legal/bulk-access-terms-of-use/">Archive access</a> -
         <a href="https://www.softwareheritage.org/legal/api-terms-of-use/">API</a>,
-        <a href="https://www.softwareheritage.org/contact/">Contact</a>.
+        <a href="https://www.softwareheritage.org/contact/">Contact</a>,
+        <a href="{% url 'jslicenses' %}" rel="jslicense">JavaScript license information</a>
       </div>
     </footer>
     <div id="back-to-top">
diff --git a/swh/web/urls.py b/swh/web/urls.py
--- a/swh/web/urls.py
+++ b/swh/web/urls.py
@@ -1,12 +1,15 @@
-# Copyright (C) 2017-2018  The Software Heritage developers
+# Copyright (C) 2017-2019  The Software Heritage developers
 # See the AUTHORS file at the top-level directory of this distribution
 # License: GNU Affero General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
+import json
+
 from django.conf import settings
 from django.conf.urls import (
     url, include, handler400, handler403, handler404, handler500
 )
+from django.contrib.staticfiles import finders
 from django.contrib.staticfiles.views import serve
 from django.shortcuts import render
 from django.views.generic.base import RedirectView
@@ -30,6 +33,14 @@
     return render(request, "homepage.html")
 
 
+def jslicenses(request):
+    jslicenses_data = json.load(open(finders.find('jssources/weblabels.json')))
+    jslicenses_data = sorted(jslicenses_data.items(),
+                             key=lambda item: item[0].split('/')[-1])
+    return render(request, "jslicenses.html",
+                  {'jslicenses_data': jslicenses_data})
+
+
 urlpatterns = [
     url(r'^admin/', include('swh.web.admin.urls')),
     url(r'^favicon\.ico$', favicon_view),
@@ -39,7 +50,8 @@
     url(r'^jsreverse/$', urls_js, name='js_reverse'),
     url(r'^(?P<swh_id>swh:[0-9]+:[a-z]+:[0-9a-f]+.*)/$',
         swh_id_browse, name='browse-swh-id'),
-    url(r'^coverage/$', swh_coverage, name='swh-coverage')
+    url(r'^coverage/$', swh_coverage, name='swh-coverage'),
+    url(r'^jslicenses/$', jslicenses, name='jslicenses'),
 ]
 
 
diff --git a/yarn.lock b/yarn.lock
--- a/yarn.lock
+++ b/yarn.lock
@@ -9,27 +9,7 @@
   dependencies:
     "@babel/highlight" "^7.0.0"
 
-"@babel/core@>=7.1.0":
-  version "7.2.2"
-  resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.2.2.tgz#07adba6dde27bb5ad8d8672f15fde3e08184a687"
-  integrity sha512-59vB0RWt09cAct5EIe58+NzGP4TFSD3Bz//2/ELy3ZeTeKF6VTD1AXlH8BGGbCX0PuobZBsIzO7IAI9PH67eKw==
-  dependencies:
-    "@babel/code-frame" "^7.0.0"
-    "@babel/generator" "^7.2.2"
-    "@babel/helpers" "^7.2.0"
-    "@babel/parser" "^7.2.2"
-    "@babel/template" "^7.2.2"
-    "@babel/traverse" "^7.2.2"
-    "@babel/types" "^7.2.2"
-    convert-source-map "^1.1.0"
-    debug "^4.1.0"
-    json5 "^2.1.0"
-    lodash "^4.17.10"
-    resolve "^1.3.2"
-    semver "^5.4.1"
-    source-map "^0.5.0"
-
-"@babel/core@^7.3.3":
+"@babel/core@>=7.1.0", "@babel/core@^7.3.3":
   version "7.3.3"
   resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.3.3.tgz#d090d157b7c5060d05a05acaebc048bd2b037947"
   integrity sha512-w445QGI2qd0E0GlSnq6huRZWPMmQGCp5gd5ZWS4hagn0EiwzxD5QMFkpchyusAyVC1n27OKXzQ0/88aVU9n4xQ==
@@ -49,18 +29,7 @@
     semver "^5.4.1"
     source-map "^0.5.0"
 
-"@babel/generator@^7.2.2":
-  version "7.3.2"
-  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.3.2.tgz#fff31a7b2f2f3dad23ef8e01be45b0d5c2fc0132"
-  integrity sha512-f3QCuPppXxtZOEm5GWPra/uYUjmNQlu9pbAD8D/9jze4pTY83rTtB1igTBSwvkeNlC5gR24zFFkz+2WHLFQhqQ==
-  dependencies:
-    "@babel/types" "^7.3.2"
-    jsesc "^2.5.1"
-    lodash "^4.17.10"
-    source-map "^0.5.0"
-    trim-right "^1.0.1"
-
-"@babel/generator@^7.3.3":
+"@babel/generator@^7.2.2", "@babel/generator@^7.3.3":
   version "7.3.3"
   resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.3.3.tgz#185962ade59a52e00ca2bdfcfd1d58e528d4e39e"
   integrity sha512-aEADYwRRZjJyMnKN7llGIlircxTCofm3dtV5pmY6ob18MSIuipHpA2yZWkPlycwu5HJcx/pADS3zssd8eY7/6A==
@@ -244,12 +213,7 @@
     esutils "^2.0.2"
     js-tokens "^4.0.0"
 
-"@babel/parser@^7.0.0", "@babel/parser@^7.2.2", "@babel/parser@^7.2.3":
-  version "7.3.2"
-  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.3.2.tgz#95cdeddfc3992a6ca2a1315191c1679ca32c55cd"
-  integrity sha512-QzNUC2RO1gadg+fs21fi0Uu0OuGNzRKEmgCxoLNzbCdoprLwjfmZwzUrpUNfJPaVRwBpDY47A17yYEGWyRelnQ==
-
-"@babel/parser@^7.3.3":
+"@babel/parser@^7.0.0", "@babel/parser@^7.2.2", "@babel/parser@^7.2.3", "@babel/parser@^7.3.3":
   version "7.3.3"
   resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.3.3.tgz#092d450db02bdb6ccb1ca8ffd47d8774a91aef87"
   integrity sha512-xsH1CJoln2r74hR+y7cg2B5JCPaTh+Hd+EbBRk9nWGSNspuo6krjhX0Om6RnRQuIvFq8wVXCLKH3kwKDYhanSg==
@@ -363,9 +327,9 @@
     lodash "^4.17.10"
 
 "@babel/plugin-transform-classes@^7.2.0":
-  version "7.2.2"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-classes/-/plugin-transform-classes-7.2.2.tgz#6c90542f210ee975aa2aa8c8b5af7fa73a126953"
-  integrity sha512-gEZvgTy1VtcDOaQty1l10T3jQmJKlNVxLDCs+3rCVPr6nMkODLELxViq5X9l+rfxbie3XrfrMCYYY6eX3aOcOQ==
+  version "7.3.3"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-classes/-/plugin-transform-classes-7.3.3.tgz#a0532d6889c534d095e8f604e9257f91386c4b51"
+  integrity sha512-n0CLbsg7KOXsMF4tSTLCApNMoXk0wOPb0DYfsOO1e7SfIb9gOyfbpKI2MZ+AXfqvlfzq2qsflJ1nEns48Caf2w==
   dependencies:
     "@babel/helper-annotate-as-pure" "^7.0.0"
     "@babel/helper-define-map" "^7.1.0"
@@ -492,9 +456,9 @@
     "@babel/helper-replace-supers" "^7.1.0"
 
 "@babel/plugin-transform-parameters@^7.2.0":
-  version "7.2.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-parameters/-/plugin-transform-parameters-7.2.0.tgz#0d5ad15dc805e2ea866df4dd6682bfe76d1408c2"
-  integrity sha512-kB9+hhUidIgUoBQ0MsxMewhzr8i60nMa2KgeJKQWYrqQpqcBYtnpR+JgkadZVZoaEZ/eKu9mclFaVwhRpLNSzA==
+  version "7.3.3"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-parameters/-/plugin-transform-parameters-7.3.3.tgz#3a873e07114e1a5bee17d04815662c8317f10e30"
+  integrity sha512-IrIP25VvXWu/VlBWTpsjGptpomtIkYrN/3aDp4UKm7xK6UxZY88kcJ1UwETbzHAlwN21MnNfwlar0u8y3KpiXw==
   dependencies:
     "@babel/helper-call-delegate" "^7.1.0"
     "@babel/helper-get-function-arity" "^7.0.0"
@@ -652,16 +616,7 @@
     globals "^11.1.0"
     lodash "^4.17.10"
 
-"@babel/types@^7.0.0", "@babel/types@^7.2.0", "@babel/types@^7.2.2", "@babel/types@^7.3.0", "@babel/types@^7.3.2":
-  version "7.3.2"
-  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.3.2.tgz#424f5be4be633fff33fb83ab8d67e4a8290f5a2f"
-  integrity sha512-3Y6H8xlUlpbGR+XvawiH0UXehqydTmNmEpozWcXymqwcrwYAl5KMvKtQ+TF6f6E08V6Jur7v/ykdDSF+WDEIXQ==
-  dependencies:
-    esutils "^2.0.2"
-    lodash "^4.17.10"
-    to-fast-properties "^2.0.0"
-
-"@babel/types@^7.3.3":
+"@babel/types@^7.0.0", "@babel/types@^7.2.0", "@babel/types@^7.2.2", "@babel/types@^7.3.0", "@babel/types@^7.3.3":
   version "7.3.3"
   resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.3.3.tgz#6c44d1cdac2a7625b624216657d5bc6c107ab436"
   integrity sha512-2tACZ80Wg09UnPg5uGAOUvvInaqLk3l/IAhQzlxLQOIXacr6bMsra5SH6AWw/hIDRCSbCdHP2KzSOD+cT7TzMQ==
@@ -694,9 +649,9 @@
   integrity sha512-shAmDyaQC4H92APFoIaVDHCx5bStIocgvbwQyxPRrbUY20V1EYTbSDchWbuwlMG3V17cprZhA6+78JfB+3DTPw==
 
 "@types/node@*":
-  version "11.9.3"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-11.9.3.tgz#14adbb5ab8cd563f549fbae8dbe92e0b7d6e76cc"
-  integrity sha512-DMiqG51GwES/c4ScBY0u5bDlH44+oY8AeYHjY1SGCWidD7h08o1dfHue/TGK7REmif2KiJzaUskO+Q0eaeZ2fQ==
+  version "11.9.4"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-11.9.4.tgz#ceb0048a546db453f6248f2d1d95e937a6f00a14"
+  integrity sha512-Zl8dGvAcEmadgs1tmSPcvwzO1YRsz38bVJQvH1RvRqSR9/5n61Q1ktcDL0ht3FXWR+ZpVmXVwN1LuH4Ax23NsA==
 
 "@types/q@^1.5.1":
   version "1.5.1"
@@ -704,9 +659,9 @@
   integrity sha512-eqz8c/0kwNi/OEHQfvIuJVLTst3in0e7uTKeuY+WL/zfKn0xVujOTp42bS/vUUokhK5P2BppLd9JXMOMHcgbjA==
 
 "@types/unist@*", "@types/unist@^2.0.0":
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/@types/unist/-/unist-2.0.2.tgz#5dc0a7f76809b7518c0df58689cd16a19bd751c6"
-  integrity sha512-iHI60IbyfQilNubmxsq4zqSjdynlmc2Q/QvH9kjzg9+CCYVVzq1O6tc7VBzSygIwnmOt07w80IG6HDQvjv3Liw==
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/@types/unist/-/unist-2.0.3.tgz#9c088679876f374eb5983f150d4787aa6fb32d7e"
+  integrity sha512-FvUupuM3rlRsRtCN+fDudtmytGO6iHJuuRKS1Ss0pG5z8oX0diNEw94UEL7hgDbpN94rgaK5R7sWm6RrSkZuAQ==
 
 "@types/vfile-message@*":
   version "1.0.1"
@@ -1344,12 +1299,7 @@
     jquery ">=1.8.2"
     open-iconic ">=1.1.1"
 
-bootstrap@>=4.0.0, bootstrap@^4.1.0:
-  version "4.3.0"
-  resolved "https://registry.yarnpkg.com/bootstrap/-/bootstrap-4.3.0.tgz#2559ccb8d45426ac6c54db23eb3d1c9f4257fa22"
-  integrity sha512-M0vqY0Z6UDweV2nLFl5dXcb+GIo53EBCGMMVxCGH5vJxl/jsr+HkULBMd4kn9rdpdBZwd3BduCgMOYOwJybo4Q==
-
-bootstrap@^4.3.1:
+bootstrap@>=4.0.0, bootstrap@^4.1.0, bootstrap@^4.3.1:
   version "4.3.1"
   resolved "https://registry.yarnpkg.com/bootstrap/-/bootstrap-4.3.1.tgz#280ca8f610504d99d7b6b4bfc4b68cec601704ac"
   integrity sha512-rXqOmH1VilAt2DyPzluTi2blhk17bO7ef+zLLPlWvG494pDxcM234pJ8wTc/6R40UWizAIIMgxjvxZg5kmsbag==
@@ -1640,9 +1590,9 @@
     lodash.uniq "^4.5.0"
 
 caniuse-lite@^1.0.0, caniuse-lite@^1.0.30000929, caniuse-lite@^1.0.30000932:
-  version "1.0.30000936"
-  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000936.tgz#5d33b118763988bf721b9b8ad436d0400e4a116b"
-  integrity sha512-orX4IdpbFhdNO7bTBhSbahp1EBpqzBc+qrvTRVUFfZgA4zta7TdM6PN5ZxkEUgDnz36m+PfWGcdX7AVfFWItJw==
+  version "1.0.30000938"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000938.tgz#b64bf1427438df40183fce910fe24e34feda7a3f"
+  integrity sha512-ekW8NQ3/FvokviDxhdKLZZAx7PptXNwxKgXtnR5y+PR3hckwuP3yJ1Ir+4/c97dsHNqtAyfKUGdw8P4EYzBNgw==
 
 capture-stack-trace@^1.0.0:
   version "1.0.1"
@@ -1737,9 +1687,9 @@
     color-convert "^0.5.3"
 
 chokidar@^2.0.0, chokidar@^2.0.2, chokidar@^2.1.0:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-2.1.1.tgz#adc39ad55a2adf26548bd2afa048f611091f9184"
-  integrity sha512-gfw3p2oQV2wEt+8VuMlNsPjCxDxvvgnm/kz+uATu805mWVF8IJN7uz9DN7iBz+RMJISmiVbCOBFs9qBGMjtPfQ==
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-2.1.2.tgz#9c23ea40b01638439e0513864d362aeacc5ad058"
+  integrity sha512-IwXUx0FXc5ibYmPC2XeEj5mpXoV66sR+t3jqu2NS2GYwCktt3KF1/Qqjws/NkegajBA4RbZ5+DDwlOiJsxDHEg==
   dependencies:
     anymatch "^2.0.0"
     async-each "^1.0.1"
@@ -1809,16 +1759,6 @@
   dependencies:
     restore-cursor "^2.0.0"
 
-cli-table3@^0.5.0:
-  version "0.5.1"
-  resolved "https://registry.yarnpkg.com/cli-table3/-/cli-table3-0.5.1.tgz#0252372d94dfc40dbd8df06005f48f31f656f202"
-  integrity sha512-7Qg2Jrep1S/+Q3EceiZtQcDPWxhAvBw+ERf1162v4sikJrvojMHFqXt8QIVha8UlH9rgU0BeWPytZ9/TzYqlUw==
-  dependencies:
-    object-assign "^4.1.0"
-    string-width "^2.1.1"
-  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"
@@ -1939,11 +1879,6 @@
     color-convert "^1.9.1"
     color-string "^1.5.2"
 
-colors@^1.1.2:
-  version "1.3.3"
-  resolved "https://registry.yarnpkg.com/colors/-/colors-1.3.3.tgz#39e005d546afe01e01f9c4ca8fa50f686a01205d"
-  integrity sha512-mmGt/1pZqYRjMxB1axhTo16/snVZ5krrKkcmMeVKxzECMMXoCgnvTPp10QgHfcbQZw8Dq2jMNG6je4JlWU0gWg==
-
 colors@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/colors/-/colors-1.1.2.tgz#168a4701756b6a7f51a12ce0c97bfa28c084ed63"
@@ -1984,11 +1919,11 @@
     arity-n "^1.0.4"
 
 compressible@~2.0.14:
-  version "2.0.15"
-  resolved "https://registry.yarnpkg.com/compressible/-/compressible-2.0.15.tgz#857a9ab0a7e5a07d8d837ed43fe2defff64fe212"
-  integrity sha512-4aE67DL33dSW9gw4CI2H/yTxqHLNcxp0yS6jB+4h+wr3e43+1z7vm0HU9qXOH8j+qjKuL8+UtkOxYQSMq60Ylw==
+  version "2.0.16"
+  resolved "https://registry.yarnpkg.com/compressible/-/compressible-2.0.16.tgz#a49bf9858f3821b64ce1be0296afc7380466a77f"
+  integrity sha512-JQfEOdnI7dASwCuSPWIeVYwc/zMsu/+tRhoUvEfXz2gxOA2DNjmG5vhtFdBlhWPPGo+RdT9S3tgc/uH5qgDiiA==
   dependencies:
-    mime-db ">= 1.36.0 < 2"
+    mime-db ">= 1.38.0 < 2"
 
 compression@^1.5.2:
   version "1.7.3"
@@ -2121,9 +2056,9 @@
     serialize-javascript "^1.4.0"
 
 core-js@^2.5.7:
-  version "2.6.4"
-  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.6.4.tgz#b8897c062c4d769dd30a0ac5c73976c47f92ea0d"
-  integrity sha512-05qQ5hXShcqGkPZpXEFLIpxayZscVD2kuMBZewxiIPPEagukO4mqgPA9CWhUvFBJfy3ODdK2p9xyHh7FTU9/7A==
+  version "2.6.5"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.6.5.tgz#44bc8d249e7fb2ff5d00e0341a7ffb94fbf67895"
+  integrity sha512-klh/kDpwX8hryYL14M9w/xei6vrv6sE8gTHDG7/T/+SEovB/G4ejwcfE/CBzO6Edsu+OETZMZ3wcX/EjUkrl5A==
 
 core-util-is@1.0.2, core-util-is@~1.0.0:
   version "1.0.2"
@@ -2141,13 +2076,14 @@
     require-from-string "^2.0.1"
 
 cosmiconfig@^5.0.0:
-  version "5.0.7"
-  resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-5.0.7.tgz#39826b292ee0d78eda137dfa3173bd1c21a43b04"
-  integrity sha512-PcLqxTKiDmNT6pSpy4N6KtuPwb53W+2tzNvwOZw0WH9N6O0vLIBq0x8aj8Oj75ere4YcGi48bDFCL+3fRJdlNA==
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-5.1.0.tgz#6c5c35e97f37f985061cdf653f114784231185cf"
+  integrity sha512-kCNPvthka8gvLtzAxQXvWo4FxqRB+ftRZyPZNuab5ngvM9Y7yw7hbEysglptLgpkGX9nAOKTBVkHUAe8xtYR6Q==
   dependencies:
     import-fresh "^2.0.0"
     is-directory "^0.3.1"
     js-yaml "^3.9.0"
+    lodash.get "^4.4.2"
     parse-json "^4.0.0"
 
 create-ecdh@^4.0.0:
@@ -2318,9 +2254,9 @@
   integrity sha1-g4NCMMyfdMRX3lnuvRVD/uuDt+w=
 
 css-what@^2.1.2:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/css-what/-/css-what-2.1.2.tgz#c0876d9d0480927d7d4920dcd72af3595649554d"
-  integrity sha512-wan8dMWQ0GUeF7DGEPVjhHemVW/vy6xUYmFzRY8RYqgA0JtXC9rJmbScBjqSu6dg9q0lwPQy6ZAmJVr3PPTvqQ==
+  version "2.1.3"
+  resolved "https://registry.yarnpkg.com/css-what/-/css-what-2.1.3.tgz#a6d7604573365fe74686c3f311c56513d88285f2"
+  integrity sha512-a+EPoD+uZiNfh+5fxw2nO9QwFa6nJe2Or35fGY6Ipw1R3R4AGz1d1TEZrCegvw2YTmZ0jXirGYlzxxpYSHwpEg==
 
 css@^2.0.0:
   version "2.2.4"
@@ -2401,9 +2337,9 @@
   integrity sha512-WcKx5OY+KoSIAxBW6UBBRay1U6vkYheCdjyVNDm85zt5K9mHoGOfsOsqIszfAqrQQFIIKgjh2+FDgIj/zsl21Q==
 
 cssnano@^4.1.0:
-  version "4.1.9"
-  resolved "https://registry.yarnpkg.com/cssnano/-/cssnano-4.1.9.tgz#f2ac0f5a8b9396fcb11d25fb3aab1e86303fcbd2"
-  integrity sha512-osEbYy4kzaNY3nkd92Uf3hy5Jqb5Aztuv+Ze3Z6DjRhyntZDlb3YljiYDdJ05k167U86CZpSR+rbuJYN7N3oBQ==
+  version "4.1.10"
+  resolved "https://registry.yarnpkg.com/cssnano/-/cssnano-4.1.10.tgz#0ac41f0b13d13d465487e111b778d42da631b8b2"
+  integrity sha512-5wny+F6H4/8RgNlaqab4ktc3e0/blKutmq8yNlBFXA//nSFFAqAngjNVRzUvCgYROULmZZUoosL/KSoZo5aUaQ==
   dependencies:
     cosmiconfig "^5.0.0"
     cssnano-preset-default "^4.0.7"
@@ -2718,14 +2654,7 @@
   dependencies:
     ms "2.0.0"
 
-debug@=3.1.0:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
-  integrity sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==
-  dependencies:
-    ms "2.0.0"
-
-debug@^3.1.0, debug@^3.2.5:
+debug@^3.1.0, 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==
@@ -2928,28 +2857,23 @@
     esutils "^2.0.2"
 
 dom-serializer@0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/dom-serializer/-/dom-serializer-0.1.0.tgz#073c697546ce0780ce23be4a28e293e40bc30c82"
-  integrity sha1-BzxpdUbOB4DOI75KKOKT5AvDDII=
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/dom-serializer/-/dom-serializer-0.1.1.tgz#1ec4059e284babed36eec2941d4a970a189ce7c0"
+  integrity sha512-l0IU0pPzLWSHBcieZbpOKgkIn3ts3vAh7ZuFyXNwJxJXk/c4Gwj9xaTJwIDVQCXawWD0qb3IzMGH5rglQaO0XA==
   dependencies:
-    domelementtype "~1.1.1"
-    entities "~1.1.1"
+    domelementtype "^1.3.0"
+    entities "^1.1.1"
 
 domain-browser@^1.1.1:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/domain-browser/-/domain-browser-1.2.0.tgz#3d31f50191a6749dd1375a7f522e823d42e54eda"
   integrity sha512-jnjyiM6eRyZl2H+W8Q/zLMA481hzi0eszAaBUzIVnmYVDBbnLxVNnfu1HgEBvCbL+71FrxMl3E6lpKH7Ge3OXA==
 
-domelementtype@1, domelementtype@^1.3.0:
+domelementtype@1, domelementtype@^1.3.0, domelementtype@^1.3.1:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.3.1.tgz#d048c44b37b0d10a7f2a3d5fee3f4333d790481f"
   integrity sha512-BSKB+TSpMpFI/HOxCNr1O8aMOTZ8hT3pM3GQ0w/mWRmkhEDSFJkkyzz4XQsBV44BChwGkrDfMyjVD0eA2aFV3w==
 
-domelementtype@~1.1.1:
-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.1.3.tgz#bd28773e2642881aec51544924299c5cd822185b"
-  integrity sha1-vSh3PiZCiBrsUVRJJCmcXNgiGFs=
-
 domhandler@^2.3.0:
   version "2.4.2"
   resolved "https://registry.yarnpkg.com/domhandler/-/domhandler-2.4.2.tgz#8805097e933d65e85546f726d60f5eb88b44f803"
@@ -3049,7 +2973,7 @@
     memory-fs "^0.4.0"
     tapable "^1.0.0"
 
-entities@^1.1.1, entities@~1.1.1:
+entities@^1.1.1:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/entities/-/entities-1.1.2.tgz#bdfa735299664dfafd34529ed4f8522a275fea56"
   integrity sha512-f2LZMYl1Fzu7YSBKg+RoROelpOaNrcGmE9AZubeDfrCEia483oW4MI4VyFd5VNHIgQ/7qm1I0wUHK1eJnn2y2w==
@@ -3692,11 +3616,11 @@
     readable-stream "^2.3.6"
 
 follow-redirects@^1.0.0:
-  version "1.6.1"
-  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.6.1.tgz#514973c44b5757368bad8bddfe52f81f015c94cb"
-  integrity sha512-t2JCjbzxQpWvbhts3l6SH1DKzSrx8a+SsaVf4h6bG4kOXUuPYS/kg2Lr4gQSb7eemaHqJkOThF1BGyjlUkO1GQ==
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.7.0.tgz#489ebc198dc0e7f64167bd23b03c4c19b5784c76"
+  integrity sha512-m/pZQy4Gj287eNy94nivy5wchN3Kp+Q5WgUPNy5lJSZ3sgkVKSYV/ZChMAQVIgx1SqfZ2zBZtPA2YlXIWxxJOQ==
   dependencies:
-    debug "=3.1.0"
+    debug "^3.2.6"
 
 font-awesome@^4.7.0:
   version "4.7.0"
@@ -4215,16 +4139,16 @@
   integrity sha1-ELMKOGCF9Dzt41PMj6fLDe7qZos=
 
 htmlparser2@^3.10.0:
-  version "3.10.0"
-  resolved "https://registry.yarnpkg.com/htmlparser2/-/htmlparser2-3.10.0.tgz#5f5e422dcf6119c0d983ed36260ce9ded0bee464"
-  integrity sha512-J1nEUGv+MkXS0weHNWVKJJ+UrLfePxRWpN3C9bEi9fLxL2+ggW94DQvgYVXsaT30PGwYRIZKNZXuyMhp3Di4bQ==
+  version "3.10.1"
+  resolved "https://registry.yarnpkg.com/htmlparser2/-/htmlparser2-3.10.1.tgz#bd679dc3f59897b6a34bb10749c855bb53a9392f"
+  integrity sha512-IgieNijUMbkDovyoKObU1DUhm1iwNYE/fuifEoEHfd1oZKZDaONBSkal7Y01shxsM49R4XaMdGez3WnF9UfiCQ==
   dependencies:
-    domelementtype "^1.3.0"
+    domelementtype "^1.3.1"
     domhandler "^2.3.0"
     domutils "^1.5.1"
     entities "^1.1.1"
     inherits "^2.0.1"
-    readable-stream "^3.0.6"
+    readable-stream "^3.1.1"
 
 http-deceiver@^1.2.7:
   version "1.2.7"
@@ -5230,6 +5154,11 @@
   resolved "https://registry.yarnpkg.com/lodash.find/-/lodash.find-4.6.0.tgz#cb0704d47ab71789ffa0de8b97dd926fb88b13b1"
   integrity sha1-ywcE1Hq3F4n/oN6Ll92Sb7iLE7E=
 
+lodash.get@^4.4.2:
+  version "4.4.2"
+  resolved "https://registry.yarnpkg.com/lodash.get/-/lodash.get-4.4.2.tgz#2d177f652fa31e939b4438d5341499dfa3825e99"
+  integrity sha1-LRd/ZS+jHpObRDjVNBSZ36OCXpk=
+
 lodash.max@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/lodash.max/-/lodash.max-4.0.1.tgz#8735566c618b35a9f760520b487ae79658af136a"
@@ -5506,22 +5435,17 @@
     bn.js "^4.0.0"
     brorand "^1.0.1"
 
-"mime-db@>= 1.36.0 < 2":
+"mime-db@>= 1.38.0 < 2", mime-db@~1.38.0:
   version "1.38.0"
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.38.0.tgz#1a2aab16da9eb167b49c6e4df2d9c68d63d8e2ad"
   integrity sha512-bqVioMFFzc2awcdJZIzR3HjZFX20QhilVS7hytkKrv7xFAn8bM1gzc/FOX2awLISvWe0PV8ptFKcon+wZ5qYkg==
 
-mime-db@~1.37.0:
-  version "1.37.0"
-  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.37.0.tgz#0b6a0ce6fdbe9576e25f1f2d2fde8830dc0ad0d8"
-  integrity sha512-R3C4db6bgQhlIhPU48fUtdVmKnflq+hRdad7IyKhtFj06VPNVdk2RhiYL3UjQIlso8L+YxAtFkobT0VK+S/ybg==
-
 mime-types@^2.1.12, mime-types@~2.1.17, mime-types@~2.1.18, mime-types@~2.1.19:
-  version "2.1.21"
-  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.21.tgz#28995aa1ecb770742fe6ae7e58f9181c744b3f96"
-  integrity sha512-3iL6DbwpyLzjR3xHSFNFeb9Nz/M8WDkX33t1GFQnFOllWk8pOrh/LSrB5OXlnlW5P9LH73X6loW/eogc+F5lJg==
+  version "2.1.22"
+  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.22.tgz#fe6b355a190926ab7698c9a0556a11199b2199bd"
+  integrity sha512-aGl6TZGnhm/li6F7yx82bJiBZwgiEa4Hf6CNr8YO+r5UHr53tSTYZb102zyU50DOWWKeOv0uQLRL0/9EiKWCog==
   dependencies:
-    mime-db "~1.37.0"
+    mime-db "~1.38.0"
 
 mime@1.4.1:
   version "1.4.1"
@@ -6281,9 +6205,9 @@
     callsites "^3.0.0"
 
 parse-asn1@^5.0.0:
-  version "5.1.3"
-  resolved "https://registry.yarnpkg.com/parse-asn1/-/parse-asn1-5.1.3.tgz#1600c6cc0727365d68b97f3aa78939e735a75204"
-  integrity sha512-VrPoetlz7B/FqjBLD2f5wBVZvsZVLnRUrxVLfRYhGXCODa/NWE4p3Wp+6+aV3ZPL3KM7/OZmxDIwwijD7yuucg==
+  version "5.1.4"
+  resolved "https://registry.yarnpkg.com/parse-asn1/-/parse-asn1-5.1.4.tgz#37f6628f823fbdeb2273b4d540434a22f3ef1fcc"
+  integrity sha512-Qs5duJcuvNExRfFZ99HDD3z4mAi3r9Wl/FOjEOijlxwCZs7E7mW2vjTpgQ4J8LpTF8x5v+1Vn5UQFejmWT11aw==
   dependencies:
     asn1.js "^4.0.0"
     browserify-aes "^1.0.0"
@@ -7174,7 +7098,7 @@
     string_decoder "~1.1.1"
     util-deprecate "~1.0.1"
 
-readable-stream@^3.0.6:
+readable-stream@^3.0.6, readable-stream@^3.1.1:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.1.1.tgz#ed6bbc6c5ba58b090039ff18ce670515795aeb06"
   integrity sha512-DkN66hPyqDhnIQ6Jcsvx9bFjhw214O4poMBcIMgPVpQvNy9a0e0Uhg5SqySyDKAmUlwt8LonTBz1ezOnM8pUdA==
@@ -7246,13 +7170,9 @@
   integrity sha512-8t6074A68gHfU8Neftl0Le6KTDwfGAj7IyjPIMSfikI2wJUTHDMaIq42bUsfVnj8mhx0R+45rdUXHGpN164avA==
 
 regexp-tree@^0.1.0:
-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/regexp-tree/-/regexp-tree-0.1.1.tgz#27b455f9b138ca2e84c090e9aff1ffe2a04d97fa"
-  integrity sha512-HwRjOquc9QOwKTgbxvZTcddS5mlNlwePMQ3NFL8broajMLD5CXDAqas8Y5yxJH5QtZp5iRor3YCILd5pz71Cgw==
-  dependencies:
-    cli-table3 "^0.5.0"
-    colors "^1.1.2"
-    yargs "^12.0.5"
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/regexp-tree/-/regexp-tree-0.1.5.tgz#7cd71fca17198d04b4176efd79713f2998009397"
+  integrity sha512-nUmxvfJyAODw+0B13hj8CFVAxhe7fDEAgJgaotBu3nnR+IgGgZq59YedJP5VYTlkEfqjuK6TuRpnymKdatLZfQ==
 
 regexpp@^2.0.1:
   version "2.0.1"
@@ -8238,9 +8158,9 @@
   integrity sha1-eVjHk+R+MuB9K1yv5cC/jhLneQI=
 
 stylehacks@^4.0.0:
-  version "4.0.2"
-  resolved "https://registry.yarnpkg.com/stylehacks/-/stylehacks-4.0.2.tgz#d22eb2767598b1a704341290b42aeafb7945ce38"
-  integrity sha512-AZwvn2b3aNKK1yp+VgNPOuC2jIJOvh9PAiCq2gjDBW1WkQxQUksR1RugOJRIOhMYTGHZeoMcMQKp3/qaS3evNg==
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/stylehacks/-/stylehacks-4.0.3.tgz#6718fcaf4d1e07d8a1318690881e8d96726a71d5"
+  integrity sha512-7GlLk9JwlElY4Y6a/rmbH2MhVlTyVmiJd1PfTCqFaIBEGMYNsrO/v3SeGTdhBThLg4Z+NbOk/qFMwCa+J+3p/g==
   dependencies:
     browserslist "^4.0.0"
     postcss "^7.0.0"
@@ -9299,7 +9219,7 @@
     y18n "^3.2.1"
     yargs-parser "^8.1.0"
 
-yargs@^12.0.4, yargs@^12.0.5:
+yargs@^12.0.4:
   version "12.0.5"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-12.0.5.tgz#05f5997b609647b64f66b81e3b4b10a368e7ad13"
   integrity sha512-Lhz8TLaYnxq/2ObqHDql8dX8CJi97oHxrjUcYtzKbbykPtVW9WB+poxI+NM2UIzsMgNCZTIf0AQwsjK5yMAqZw==