travis: shift xvfb to services

dhilt · dhilt · commit 05bd5d59aedc · 2019-08-16T04:05:45.000+03:00
diff --git a/.travis.yml b/.travis.yml
@@ -13,10 +13,8 @@ cache:
 addons:
   firefox: latest
 
-before_script:
-- export DISPLAY=:99.0
+services:
 - xvfb
-- sleep 3
 
 script:
 - npm run build
