diff --git a/.circleci/config.yml b/.circleci/config.yml
index 4e2020079..4082a5605 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -3,54 +3,83 @@ jobs:
   build:
     working_directory: ~/phovea
     docker:
-      - image: caleydo/phovea_circleci_python:v2.0
+      - image: caleydo/phovea_circleci_python:v3.0
     steps:
       - checkout
       - run:
+          name: Show Node.js and npm version
+          command: |
+            node -v
+            npm -v
+      - run:
+          name: Show Python and pip version
+          command: |
+            python --version
+            pip --version
+      - run:
+          name: Install Docker packages from docker_packages.txt
           command: |
             (!(test -f docker_packages.txt) || (cat docker_packages.txt | xargs sudo apt-get install -y))
       - restore_cache:
-          key: deps4-{{ checksum "package.json" }}
+          key: deps2-{{ .Branch }}-{{ checksum "package.json" }}
       - run:
-          name: install-npm-wee
+          name: Install npm dependencies
           command: npm install
-      - run: #remove all resolved github dependencies
-          name: delete-vcs-dependencies
+      - run:
+          name: Remove npm dependencies installed from git repositories (avoid caching of old commits)
           command: |
             (grep -l '._resolved.: .\(git[^:]*\|bitbucket\):' ./node_modules/*/package.json || true) | xargs -r dirname | xargs -r rm -rf
       - save_cache:
-          key: deps4-{{ checksum "package.json" }}
+          key: deps2-{{ .Branch }}-{{ checksum "package.json" }}
           paths:
           - ./node_modules
-      - run: #install all dependencies
-          name: install-npm-wee2
+      - run:
+          name: Install npm dependencies from git repositories (always get latest commit)
           command: npm install
+      - run:
+          name: Show installed npm dependencies
+          command: npm list --depth=1 || true
       - restore_cache:
-          key: deps1-{{ checksum "requirements.txt" }}-{{ checksum "requirements_dev.txt" }}
+          key: deps1-{{ .Branch }}-{{ checksum "requirements.txt" }}-{{ checksum "requirements_dev.txt" }}
       - run:
-          name: install-pip-wee
+          name: Install pip requirements
           command: |
             virtualenv ~/venv
             . ~/venv/bin/activate
             pip install -r requirements_dev.txt
             pip install -r requirements.txt
       - save_cache:
-          key: deps1-{{ checksum "requirements.txt" }}-{{ checksum "requirements_dev.txt" }}
+          key: deps1-{{ .Branch }}-{{ checksum "requirements.txt" }}-{{ checksum "requirements_dev.txt" }}
           paths:
           - ~/venv
-      - run: #force update of VCS dependencies?
-          name: update-pip-vcs-dependencies
+      - run:
+          name: Force an update of pip dependencies from git repositories # not sure if this is working ?
           command: |
             . ~/venv/bin/activate
             pip install --upgrade --upgrade-strategy=only-if-needed -r requirements.txt
       - run:
-          name: build
+          name: Show installed pip packages
+          command: pip list || true
+      - run:
+          name: Build
           command: |
             . ~/venv/bin/activate
-            npm run build
-
+            npm run dist
+      - store_artifacts:
+          path: dist
+          prefix: dist
 workflows:
   version: 2
+#  build-nightly:
+#    triggers:
+#      - schedule:
+#          cron: "15 1 * * 1-5" # "At 01:15 on every day-of-week from Monday through Friday.”, see: https://crontab.guru/#15_1_*_*_1-5
+#          filters:
+#            branches:
+#              only:
+#                - develop
+#    jobs:
+#      - build
   build-branch:
     jobs:
       - build:
diff --git a/.gitignore b/.gitignore
index 2104b5ef4..4969b7c18 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,3 +22,4 @@ node_modules/
 /tests/**/*.js
 *.map
 *.css
+/.cache-loader
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 9074a7aa1..7feb5613c 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,4 +1,4 @@
-image: caleydo/phovea_circleci_python:v1.0
+image: caleydo/phovea_circleci_python:v3.0
 
 variables:
   GIT_DEPTH: "1"
diff --git a/.yo-rc.json b/.yo-rc.json
index 79f8ca603..3be8def29 100644
--- a/.yo-rc.json
+++ b/.yo-rc.json
@@ -43,6 +43,12 @@
     ],
     "ignores": [],
     "today": "Sun, 06 Nov 2016 15:02:36 GMT",
-    "clientOnly": false
+    "clientOnly": false,
+    "promptValues": {
+      "authorName": "datavisyn",
+      "authorEmail": "contact@datavisyn.io",
+      "authorUrl": "https://www.datavisyn.io",
+      "githubAccount": "datavisyn"
+    }
   }
-}
\ No newline at end of file
+}
diff --git a/ISSUE_TEMPLATE.md b/ISSUE_TEMPLATE.md
new file mode 100644
index 000000000..bdb156f5c
--- /dev/null
+++ b/ISSUE_TEMPLATE.md
@@ -0,0 +1,17 @@
+* Release number or git hash: 
+* Web browser version and OS: 
+* Environment (local or deployed): 
+
+### Steps to reproduce
+
+1. 
+2. 
+
+### Observed behavior
+* Any unexpected output or action (or lack of expected output or action)
+* Web browser console errors (including tracebacks)
+* Server errors (relevant messages and tracebacks)
+* Static or animated images showing the UI behavior
+
+### Expected behavior
+* 
diff --git a/buildInfo.js b/buildInfo.js
index 09204ef6f..4e7bd687f 100644
--- a/buildInfo.js
+++ b/buildInfo.js
@@ -139,7 +139,7 @@ function resolveScreenshot() {
   if (!fs.existsSync(f)) {
     return null;
   }
-  const buffer = new Buffer(fs.readFileSync(f)).toString('base64');
+  const buffer = Buffer.from(fs.readFileSync(f)).toString('base64');
   return `data:image/png;base64,${buffer}`;
 }
 
diff --git a/package-lock.json b/package-lock.json
index 55d023d40..79cb597dd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -66,9 +66,12 @@
       "dev": true
     },
     "@types/jquery": {
-      "version": "2.0.33",
-      "resolved": "https://registry.npmjs.org/@types/jquery/-/jquery-2.0.33.tgz",
-      "integrity": "sha1-aE7zoumfb9KvxSo1fkeuBfUfT2w="
+      "version": "3.3.31",
+      "resolved": "https://registry.npmjs.org/@types/jquery/-/jquery-3.3.31.tgz",
+      "integrity": "sha512-Lz4BAJihoFw5nRzKvg4nawXPzutkv7wmfQ5121avptaSIXlDNJCUuxZxX/G+9EVidZGuO0UBlk+YjKbwRKJigg==",
+      "requires": {
+        "@types/sizzle": "*"
+      }
     },
     "@types/lodash": {
       "version": "4.14.104",
@@ -93,12 +96,18 @@
       "integrity": "sha512-FMdVn84tJJdV+xe+53sYiZS4R5yn1mAIxfj+DVoNiQjTYz1+OYmjwEZr1ev9nU0axXwda0QDbYl06QHanRVH3A==",
       "dev": true
     },
+    "@types/requirejs": {
+      "version": "2.1.31",
+      "resolved": "https://registry.npmjs.org/@types/requirejs/-/requirejs-2.1.31.tgz",
+      "integrity": "sha512-b2soeyuU76rMbcRJ4e0hEl0tbMhFwZeTC0VZnfuWlfGlk6BwWNsev6kFu/twKABPX29wkX84wU2o+cEJoXsiTw=="
+    },
     "@types/select2": {
-      "version": "4.0.41",
-      "resolved": "https://registry.npmjs.org/@types/select2/-/select2-4.0.41.tgz",
-      "integrity": "sha512-3/91X/6jP7eW8Qx1Gjs5W7kdF+5C4XWZJRaDeFCKjpqCvCDI5QkB288OK+JXvWnQtqVYF+WNUshPIyvbMpQMrQ==",
+      "version": "4.0.48",
+      "resolved": "https://registry.npmjs.org/@types/select2/-/select2-4.0.48.tgz",
+      "integrity": "sha512-C1cUbfwKBqlO+/3OWQKMajA4D/d5SvI9rSGoXCa7FQI9B1p1iRqZzetkfpGPY44BP1Y8emHL17rdUJYZEyzN+Q==",
       "requires": {
-        "@types/jquery": "*"
+        "@types/jquery": "*",
+        "@types/requirejs": "*"
       }
     },
     "@types/shelljs": {
@@ -111,6 +120,11 @@
         "@types/node": "*"
       }
     },
+    "@types/sizzle": {
+      "version": "2.3.2",
+      "resolved": "https://registry.npmjs.org/@types/sizzle/-/sizzle-2.3.2.tgz",
+      "integrity": "sha512-7EJYyKTL7tFR8+gDbB6Wwz/arpGa0Mywk1TJbNzKzHtzbwVmY4HR9WqS5VV7dsBUKQmPNr192jHr/VpBluj/hg=="
+    },
     "@types/whatwg-fetch": {
       "version": "0.0.33",
       "resolved": "https://registry.npmjs.org/@types/whatwg-fetch/-/whatwg-fetch-0.0.33.tgz",
@@ -190,11 +204,6 @@
         "repeat-string": "^1.5.2"
       }
     },
-    "almond": {
-      "version": "0.3.3",
-      "resolved": "https://registry.npmjs.org/almond/-/almond-0.3.3.tgz",
-      "integrity": "sha1-oOfJWsdiTWQXtElLHmi/9pMWiiA="
-    },
     "alphanum-sort": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/alphanum-sort/-/alphanum-sort-1.0.2.tgz",
@@ -3735,14 +3744,9 @@
       "dev": true
     },
     "jquery": {
-      "version": "3.1.1",
-      "resolved": "https://registry.npmjs.org/jquery/-/jquery-3.1.1.tgz",
-      "integrity": "sha1-NHwcIcfgBBFeCk2jLOzgQfrTyKM="
-    },
-    "jquery-mousewheel": {
-      "version": "3.1.13",
-      "resolved": "https://registry.npmjs.org/jquery-mousewheel/-/jquery-mousewheel-3.1.13.tgz",
-      "integrity": "sha1-BvAzXxbjU6aV5yBr9QUDy1I6buU="
+      "version": "3.3.1",
+      "resolved": "https://registry.npmjs.org/jquery/-/jquery-3.3.1.tgz",
+      "integrity": "sha512-Ubldcmxp5np52/ENotGxlLe6aGMvmF4R8S6tZjsP6Knsaxd/xp3Zrh50cG93lR6nPXyUFwzN3ZSOQI0wRJNdGg=="
     },
     "js-base64": {
       "version": "2.5.1",
@@ -4027,7 +4031,7 @@
       "integrity": "sha512-6nrZlwJOBVOX+1fuqR21QvqH14y7kd+V1Qh/xZllkCHzy4IRtrywDc7YklYzmtpJWKDvflD2pfn2D75P+UICfg=="
     },
     "lineupjs": {
-      "version": "github:lineupjs/lineupjs#ba19207e89ce0c94e23e0293ae8d2922aa2cf3fe",
+      "version": "github:lineupjs/lineupjs#1b84e033be7b1463825feb533905df29e1352b64",
       "from": "github:lineupjs/lineupjs#develop",
       "requires": {
         "@types/d3-format": "^1.3.1",
@@ -5071,6 +5075,18 @@
         "font-awesome": "4.7.0",
         "jquery": "3.1.1",
         "phovea_core": "^2.2.0"
+      },
+      "dependencies": {
+        "@types/jquery": {
+          "version": "2.0.33",
+          "resolved": "https://registry.npmjs.org/@types/jquery/-/jquery-2.0.33.tgz",
+          "integrity": "sha1-aE7zoumfb9KvxSo1fkeuBfUfT2w="
+        },
+        "jquery": {
+          "version": "3.1.1",
+          "resolved": "https://registry.npmjs.org/jquery/-/jquery-3.1.1.tgz",
+          "integrity": "sha1-NHwcIcfgBBFeCk2jLOzgQfrTyKM="
+        }
       }
     },
     "pify": {
@@ -6563,13 +6579,9 @@
       "dev": true
     },
     "select2": {
-      "version": "4.0.4",
-      "resolved": "https://registry.npmjs.org/select2/-/select2-4.0.4.tgz",
-      "integrity": "sha1-oYpih4X5jROZmXGuldjX5XJoB2s=",
-      "requires": {
-        "almond": "~0.3.1",
-        "jquery-mousewheel": "~3.1.13"
-      }
+      "version": "4.0.12",
+      "resolved": "https://registry.npmjs.org/select2/-/select2-4.0.12.tgz",
+      "integrity": "sha512-mbXC05AvjCboZcRlgJqN4mlI2qmqshpRC76sKNAdxS1lPLOh2m/NTyfL6xsvGoY6eIhjaya4dbumN99MudVQ2w=="
     },
     "select2-bootstrap-theme": {
       "version": "0.1.0-beta.9",
@@ -8000,6 +8012,12 @@
           "resolved": "https://registry.npmjs.org/marked/-/marked-0.3.19.tgz",
           "integrity": "sha512-ea2eGWOqNxPcXv8dyERdSr/6FmzvWwzjMxpfGB/sbMccXoct+xY+YukPD+QTUZwyvK7BZwcr4m21WBOW41pAkg==",
           "dev": true
+        },
+        "typescript": {
+          "version": "2.7.2",
+          "resolved": "https://registry.npmjs.org/typescript/-/typescript-2.7.2.tgz",
+          "integrity": "sha512-p5TCYZDAO0m4G344hD+wx/LATebLWZNkkh2asWUFqSsD2OrDNhbAHuSjobrmsUmdzjJjEeZVU9g1h3O6vpstnw==",
+          "dev": true
         }
       }
     },
@@ -8010,9 +8028,9 @@
       "dev": true
     },
     "typescript": {
-      "version": "2.7.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-2.7.2.tgz",
-      "integrity": "sha512-p5TCYZDAO0m4G344hD+wx/LATebLWZNkkh2asWUFqSsD2OrDNhbAHuSjobrmsUmdzjJjEeZVU9g1h3O6vpstnw==",
+      "version": "2.8.1",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-2.8.1.tgz",
+      "integrity": "sha512-Ao/f6d/4EPLq0YwzsQz8iXflezpTkQzqAyenTiw4kCUGr1uPiFLC3+fZ+gMZz6eeI/qdRUqvC+HxIJzUAzEFdg==",
       "dev": true
     },
     "uglify-js": {
diff --git a/package.json b/package.json
index 66328acf4..532974673 100644
--- a/package.json
+++ b/package.json
@@ -32,8 +32,8 @@
     "redhat_packages.txt"
   ],
   "engines": {
-    "npm": ">= 3",
-    "node": ">= 6",
+    "npm": ">= 6.12",
+    "node": ">= 12.13",
     "iojs": ">= 3"
   },
   "scripts": {
@@ -43,7 +43,7 @@
     "predist": "echo hybrid",
     "dist": "npm run dist:web && npm run dist:python",
     "compile": "tsc",
-    "lint": "tslint -c tslint.json -p .",
+    "lint": "tslint -c tslint.json -p . 'src/**/*.ts?(x)' 'tests/**/*.ts?(x)'",
     "docs": "npm run docs:web && npm run docs:python",
     "prebuild": "echo hybrid",
     "posttest": "echo hybrid",
@@ -63,7 +63,7 @@
     "test:python": "test ! $(find tests -name \"*.py\") || python setup.py test",
     "predist:web": "npm run build:web && npm run docs:web",
     "dist:web": "mkdirp dist && cd build && tar cvzf ../dist/tdp_core.tar.gz *",
-    "dist:python": "python setup.py sdist bdist_wheel",
+    "dist:python": "python setup.py bdist_egg",
     "predocker": "npm run build",
     "docker": "docker build -t tdp_core -f deploy/Dockerfile .",
     "docs:web": "typedoc --options typedoc.json src/**.ts",
@@ -75,24 +75,27 @@
     "prebuild:web": "node -e \"process.exit(process.env.PHOVEA_SKIP_TESTS === undefined?1:0)\" || npm run test:web"
   },
   "dependencies": {
-    "@types/d3": "3.5.36",
-    "@types/select2": "4.0.41",
-    "d3": "3.5.17",
+    "@types/d3": "~3.5.36",
+    "@types/select2": "~4.0.47",
+    "d3": "~3.5.17",
     "lineupjs": "github:lineupjs/lineupjs#develop",
     "phovea_clue": "^2.2.0",
-    "select2": "4.0.4",
+    "select2": "~4.0.5",
     "select2-bootstrap-theme": "0.1.0-beta.9",
-    "@types/jquery": "2.0.33",
-    "jquery": "3.1.1"
+    "@types/jquery": "~3.3.6",
+    "jquery": "~3.3.1"
   },
   "main": "build/tdp_core.js",
   "devDependencies": {
     "@types/jasmine": "2.5.47",
     "awesome-typescript-loader": "3.1.2",
+    "cache-loader": "1.2.0",
     "css-loader": "0.28.0",
-    "extract-loader": "0.1.0",
     "extract-text-webpack-plugin": "2.1.0",
+    "extract-loader": "0.1.0",
+    "ifdef-loader": "2.0.0",
     "file-loader": "0.11.1",
+    "fork-ts-checker-webpack-plugin": "0.4.1",
     "html-loader": "0.4.5",
     "imports-loader": "0.7.1",
     "jasmine": "2.5.3",
@@ -110,17 +113,14 @@
     "raw-loader": "0.5.1",
     "sass-loader": "6.0.7",
     "style-loader": "0.16.1",
+    "thread-loader": "1.1.2",
+    "ts-loader": "4.0.1",
     "tslib": "1.9.0",
     "tslint": "5.9.1",
     "typedoc": "0.11.1",
-    "typescript": "2.7.2",
+    "typescript": "2.8.1",
     "url-loader": "0.5.8",
     "webpack": "2.3.3",
-    "webpack-dev-server": "2.4.2",
-    "cache-loader": "1.2.0",
-    "ifdef-loader": "2.0.0",
-    "fork-ts-checker-webpack-plugin": "0.4.1",
-    "thread-loader": "1.1.2",
-    "ts-loader": "4.0.1"
+    "webpack-dev-server": "2.4.2"
   }
 }
diff --git a/requirements.txt b/requirements.txt
index b25add367..dda9cfdc5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 -e git+https://github.com/phovea/phovea_server.git@develop#egg=phovea_server
-pymongo==3.0.3
+pymongo~=3.7.1
 requests~=2.20.0
 SQLAlchemy==1.1.11
 urllib3==1.20
diff --git a/setup.py b/setup.py
index b4f30f17e..591c09df4 100644
--- a/setup.py
+++ b/setup.py
@@ -39,7 +39,6 @@ def to_version(v):
   now = datetime.datetime.utcnow()
   return v.replace('SNAPSHOT', now.strftime('%Y%m%d-%H%M%S'))
 
-
 setup(
   name=pkg['name'].lower(),
   version=to_version(pkg['version']),
diff --git a/webpack.config.js b/webpack.config.js
index ec65fe77a..95542e316 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -4,16 +4,7 @@
  * Licensed under the new BSD license, available at http://caleydo.org/license
  **************************************************************************** */
 
-const {
-  libraryAliases,
-  libraryExternals,
-  modules,
-  entries,
-  ignores,
-  type,
-  registry,
-  vendor
-} = require('./.yo-rc.json')['generator-phovea'];
+const {libraryAliases, libraryExternals, modules, entries, ignores, type, registry, vendor} = require('./.yo-rc.json')['generator-phovea'];
 const resolve = require('path').resolve;
 const pkg = require('./package.json');
 const webpack = require('webpack');
@@ -33,9 +24,7 @@ const banner = '/*! ' + (pkg.title || pkg.name) + ' - v' + pkg.version + ' - ' +
   '* Copyright (c) ' + year + ' ' + pkg.author.name + ';' +
   ' Licensed ' + pkg.license + '*/\n';
 
-const preCompilerFlags = {
-  flags: (registry || {}).flags || {}
-};
+const preCompilerFlags = {flags: (registry || {}).flags || {}};
 const includeFeature = registry ? (extension, id) => {
   const exclude = registry.exclude || [];
   const include = registry.include || [];
@@ -46,13 +35,14 @@ const includeFeature = registry ? (extension, id) => {
   return include.every(test) && !exclude.some(test);
 } : () => true;
 
-const tsLoader = [{
-  loader: 'awesome-typescript-loader'
-}];
+const tsLoader = [
+  {
+    loader: 'awesome-typescript-loader'
+  }
+];
 
-const tsLoaderDev = [{
-    loader: 'cache-loader'
-  },
+const tsLoaderDev = [
+  {loader: 'cache-loader'},
   {
     loader: 'thread-loader',
     options: {
@@ -65,40 +55,24 @@ const tsLoaderDev = [{
     options: {
       happyPackMode: true, // IMPORTANT! use happyPackMode mode to speed-up compilation and reduce errors reported to webpack,
       compilerOptions: {
-        "target": "es6",
-        "jsx": "react",
-        "jsxFactory": "h",
+        target: 'es6'
       }
     }
   }
 ];
 
 // list of loaders and their mappings
-const webpackloaders = [{
-    test: /\.scss$/,
-    use: 'style-loader!css-loader!sass-loader'
-  },
-  {
-    test: /\.css$/,
-    use: 'style-loader!css-loader'
-  },
-  {
-    test: /\.tsx?$/,
-    use: tsLoader
-  },
+const webpackloaders = [
+  {test: /\.scss$/, use: 'style-loader!css-loader!sass-loader'},
+  {test: /\.css$/, use: 'style-loader!css-loader'},
+  {test: /\.tsx?$/, use: tsLoader},
   {
-    test: /phovea(_registry)?\.js$/,
-    use: [{
+    test: /phovea(_registry)?\.js$/, use: [{
       loader: 'ifdef-loader',
-      options: Object.assign({
-        include: includeFeature
-      }, preCompilerFlags)
+      options: Object.assign({include: includeFeature}, preCompilerFlags)
     }]
   },
-  {
-    test: /\.json$/,
-    use: 'json-loader'
-  },
+  {test: /\.json$/, use: 'json-loader'},
   {
     test: /\.(png|jpg)$/,
     loader: 'url-loader',
@@ -122,10 +96,7 @@ const webpackloaders = [{
       mimetype: 'image/svg+xml'
     }
   },
-  {
-    test: /\.(ttf|eot)(\?v=[0-9]\.[0-9]\.[0-9])?$/,
-    loader: 'file-loader'
-  }
+  {test: /\.(ttf|eot)(\?v=[0-9]\.[0-9]\.[0-9])?$/, loader: 'file-loader'}
 ];
 
 /**
@@ -270,10 +241,7 @@ function generateWebpack(options) {
   } else if (options.isDev) {
     // switch to def settings
     base.module.loaders.find((d) => d.use === tsLoader).use = tsLoaderDev;
-    base.plugins.push(new ForkTsCheckerWebpackPlugin({
-      checkSyntacticErrors: true,
-      tsconfig: './tsconfig_dev.json'
-    }));
+    base.plugins.push(new ForkTsCheckerWebpackPlugin({checkSyntacticErrors: true, tsconfig: './tsconfig_dev.json'}));
   }
 
   if (options.library) {
@@ -299,10 +267,7 @@ function generateWebpack(options) {
 
     // ignore extra modules
     (options.ignore || []).forEach(function (d) {
-      base.module.loaders.push({
-        test: new RegExp(d),
-        loader: 'null-loader'
-      }); // use null loader
+      base.module.loaders.push({test: new RegExp(d), loader: 'null-loader'}); // use null loader
     });
     // ingore phovea module registry calls
     (options.modules || []).forEach(function (m) {
@@ -315,7 +280,7 @@ function generateWebpack(options) {
   if (!options.bundle || options.isApp) {
     // extract the included css file to own file
     const p = new ExtractTextPlugin({
-      filename: (options.isApp || options.moduleBundle ? '[name]' : pkg.name) + (options.min && !options.nosuffix ? '.min' : '') + '.css',
+      filename: (options.isApp || options.moduleBundle ? 'style' : pkg.name) + (options.min && !options.nosuffix ? '.min' : '') + '.css',
       allChunks: true // there seems to be a bug in dynamically loaded chunk styles are not loaded, workaround: extract all styles from all chunks
     });
     base.plugins.push(p);
@@ -361,7 +326,7 @@ function generateWebpack(options) {
       new webpack.optimize.UglifyJsPlugin());
   } else {
     // generate source maps
-    base.devtool = 'source-map';
+    base.devtool = 'inline-source-map';
   }
   return base;
 }