diff --git a/.travis.yml b/.travis.yml
index 6b1ade102..11fc44723 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,6 +17,10 @@ install:
   - (cd web && npm install --no-progress && npm run build:prod)
     && mvn clean install -q -f lib/ -DskipTests=true -Dmaven.javadoc.skip=true -B
     && mvn clean install -q -f rest/ -DskipTests=true -Dmaven.javadoc.skip=true -B
+before_script:
+  - "export DISPLAY=:99.0"
+  - "sh -e /etc/init.d/xvfb start"
+  - sleep 3 # give xvfb some time to start
 script:
   - (cd web && npm run test)
     && mvn verify -f lib/
diff --git a/web/karma.conf.js b/web/karma.conf.js
index 3190aba48..77b1c964e 100644
--- a/web/karma.conf.js
+++ b/web/karma.conf.js
@@ -42,6 +42,7 @@ module.exports = function (config) {
     logLevel: config.LOG_INFO,
     autoWatch: true,
     browsers: ['Firefox', 'PhantomJS'],
-    singleRun: false
+    singleRun: false,
+    browserNoActivityTimeout: 30000
   });
 };