Bernhard Walter created ZEPPELIN-2132:
-----------------------------------------
Summary: PySpark: Printing javascript via %htm executes Javascript
twice
Key: ZEPPELIN-2132
URL: https://issues.apache.org/jira/browse/ZEPPELIN-2132
Project: Zeppelin
Issue Type: Bug
Components: front-end, GUI
Affects Versions: 0.7.0
Reporter: Bernhard Walter
If you use %html to print javascript (e.g. in order to embed visualisation
library output from Bokeh), the javascript gets executed twice:
{code}
%pyspark
print("%html")
print("""
<script>
console.log('test');
</script>
""")
{code}
Javascript Console in browser:
{code}
(2) test
{code}
with (2) being the badge in the console that flags the number of same outputs.
This sometimes leads to strange behaviour if a library assumes the conde runs
exactly once.
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