fix Security message with jest

Author: ichiriac

package.json

@@ -27,7 +27,10 @@
   ],
   "author": "Ioan CHIRIAC",
   "license": "BSD-3-Clause",
-  "testEnvironment": "node",
+  "jest": {
+    "testEnvironment": "node",
+    "testURL": "http://localhost/"
+  },
   "devDependencies": {
     "babel-preset-es2015": "^6",
     "babelify": "^7",