Github user felixcheung commented on the pull request:
https://github.com/apache/incubator-zeppelin/pull/719#issuecomment-186020261
FYI - https://s3.amazonaws.com/archive.travis-ci.org/jobs/110282609/log.txt
```
02:08:26,726 INFO org.apache.zeppelin.WebDriverManager:172 - Download of
firebug version: 31, successful
02:10:10,947 ERROR org.apache.zeppelin.integration.ZeppelinIT:199 -
Exception in ZeppelinIT while testAngularDisplay
org.openqa.selenium.ElementNotVisibleException: Element is not currently
visible and so may not be interacted with
Command duration or timeout: 8 milliseconds
```
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