diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 00000000..37b5df12
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,8 @@
+language: node_js
+node_js:
+  - "node"
+  - "6"
+  - "4"
+cache:
+  directories:
+    - node_modules
diff --git a/package.json b/package.json
index f3c6b3cd..2df70caf 100644
--- a/package.json
+++ b/package.json
@@ -70,6 +70,7 @@
     "url": "0.11.0",
     "webpack": "1.13.2",
     "webpack-dev-server": "1.16.2",
+    "sockjs-client": "1.1.1",
     "write-file-webpack-plugin": "3.3.0"
   },
   "devDependencies": {