diff --git a/test/karma.config.js b/test/karma.config.js
index 3610e09..be2ec77 100644
--- a/test/karma.config.js
+++ b/test/karma.config.js
@@ -58,7 +58,11 @@ function sauceLabs() {
 
   return _.extend(base(), {
     sauceLabs: {
-      testName: "UTD CRSS Apollo SPA Tests"
+      testName: "UTD CRSS Apollo SPA Tests",
+      startConnect: false,
+      tunnelIdentifier: process.env.TRAVIS_JOB_NUMBER,
+      username: process.env.SAUCE_USERNAME,
+      accessKey: process.env.SAUCE_ACCESS_KEY
     },
     browserDisconnectTimeout: 10000,
     browserDisconnectTolerance: 1,
diff --git a/webpack.config.js b/webpack.config.js
index 8746f7f..321571e 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -96,5 +96,11 @@ module.exports = {
 
   externals: {
     "ga": "ga"
+  },
+
+  node: {
+    // nodejs built-in modules used by xmlhttprequest
+    fs: "empty",
+    child_process: "empty"
   }
 };