fix: remove headless

.travis.yml

@@ -28,7 +28,7 @@ cache:
     -  zeppelin-web/bower_components
 
 addons:
-  chrome: beta
+  chrome: stable
   apt:
     sources:
     - r-packages-precise
@@ -124,7 +124,6 @@ before_script:
   - export DISPLAY=:99.0
   - sh -e /etc/init.d/xvfb start &
   - sleep 3
-  - ls /usr/bin
 
 script:
   - if [[ -n $TEST_MODULES ]]; then export MODULES="${TEST_MODULES}"; fi

zeppelin-web/protractor.conf.js

@@ -22,7 +22,6 @@ var baseConfig = {
     // waiting for angular app is loaded
     browser.ignoreSynchronization = true;
     browser.manage().timeouts().pageLoadTimeout(300000);
-    browser.manage().timeouts().implicitlyWait(60000);
 
     // add reporter to display executed tests in console
     var SpecReporter = require('jasmine-spec-reporter').SpecReporter;
@@ -35,7 +34,7 @@ var baseConfig = {
 };
 
 var chromeOptions = {
-  args: ['--headless', '--disable-gpu', '--no-sandbox']
+  args: ['--disable-gpu', '--no-sandbox']
 }
 
 if (process.env.TRAVIS) {