diff --git a/package.json b/package.json
index db25a88d9..6195a7729 100644
--- a/package.json
+++ b/package.json
@@ -62,6 +62,7 @@
     "clone": "^2.1.1",
     "codeclimate-test-reporter": "^0.5.0",
     "css-loader": "^0.28.7",
+    "css-to-string-loader": "^0.1.3",
     "extract-text-webpack-plugin": "^3.0.0",
     "gulp": "^3.9.1",
     "gulp-filelog": "^0.4.1",
diff --git a/webpack.config.base.js b/webpack.config.base.js
index 1d757859f..aa67b981c 100644
--- a/webpack.config.base.js
+++ b/webpack.config.base.js
@@ -26,17 +26,22 @@ const jsRule = {
   }
 }
 
+const styleRule = { // load less to string
+  test: /\.less$/,
+  use: [
+    { loader: 'css-to-string-loader' },
+    { loader: 'css-loader' },
+    { loader: 'less-loader' }
+  ]
+}
+
 const lessRule = {
   test: /\.less$/,
   use: ExtractTextPlugin.extract({
     fallback: 'style-loader',
     use: [
-      {
-        loader: 'css-loader'
-      },
-      {
-        loader: 'less-loader'
-      }
+      { loader: 'css-loader' },
+      { loader: 'less-loader' }
     ]
   })
 }
@@ -58,7 +63,7 @@ export const jsConfig = () => {
       libraryExport: 'default'
     },
     module: {
-      rules: [lodashRule, jsRule]
+      rules: [lodashRule, jsRule, styleRule]
     }
   }
 }
diff --git a/yarn.lock b/yarn.lock
index be9a3064b..a05eabee9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1583,6 +1583,12 @@ css-selector-tokenizer@^0.7.0:
     fastparse "^1.1.1"
     regexpu-core "^1.0.0"
 
+css-to-string-loader@^0.1.3:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/css-to-string-loader/-/css-to-string-loader-0.1.3.tgz#c937175f2ec783969aefe14a4fba055f7b4f9562"
+  dependencies:
+    loader-utils "^0.2.15"
+
 cssesc@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/cssesc/-/cssesc-0.1.0.tgz#c814903e45623371a0477b40109aaafbeeaddbb4"
@@ -3986,7 +3992,7 @@ loader-runner@^2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/loader-runner/-/loader-runner-2.3.0.tgz#f482aea82d543e07921700d5a46ef26fdac6b8a2"
 
-loader-utils@^0.2.5:
+loader-utils@^0.2.15, loader-utils@^0.2.5:
   version "0.2.17"
   resolved "https://registry.yarnpkg.com/loader-utils/-/loader-utils-0.2.17.tgz#f86e6374d43205a6e6c60e9196f17c0299bfb348"
   dependencies: