diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..94a25f7
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/webintroduce/package.json b/webintroduce/package.json
index f602f37..03c4b48 100644
--- a/webintroduce/package.json
+++ b/webintroduce/package.json
@@ -10,6 +10,7 @@
     "build": "node build/build.js"
   },
   "dependencies": {
+    "js-cookie": "^2.2.0",
     "vue": "^2.5.2",
     "vue-router": "^3.0.1"
   },