Github user zjffdu commented on the issue:
https://github.com/apache/zeppelin/pull/1837
Ping @felixcheung , CI failure is not relevant.
```
AngularElem
- should provide onclick method *** FAILED ***
The code passed to eventually never returned normally. Attempted 1 times
over 192.484891 milliseconds. Last failure message: 0 was not equal to 1.
(AbstractAngularElemTest.scala:64)
```
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