Sphinx Not Removing Doctest Flags In Html Output

I cannot eliminate the doctest flags (ie. , # doctest: +ELLIPSIS) for the html output. I am able to generate the documentation as I would like, so no errors there

Solution 1:

Based on the comment by @mzjn, it appears that this was a bug, fixed in Sphinx 2.2.0:

Issue: doctest comments not getting trimmed since Sphinx 1.8.0 - Issue #6545