chore(package): update webpack-dev-server to version 3.9.0

greenkeeper[bot] · web-flow · commit 93ee2ca66db1 · 2019-10-22T17:05:19.000Z
Closes #354
diff --git a/package.json b/package.json
@@ -78,7 +78,7 @@
     "url-loader": "2.0.1",
     "webpack": "4.35.3",
     "webpack-cli": "3.3.5",
-    "webpack-dev-server": "3.5.0"
+    "webpack-dev-server": "3.9.0"
   },
   "nodemonConfig": {
     "restartable": "rs",
