GitLab CE does not render PyCharm (2019.1RC) created Jupyter Notebook (Jupyter itself does)
Summary
GitLab CE (at least from 11.6.0 to 11.8.2) does not render PyCharm 2019.1RC created Jupyter Notebook at all although Jupyter Notebook (5.7.6) itself does.
Steps to reproduce
Commit attached sample notebook and try to view it with GitLab CE Jupyter Notebook Viewer.
What is the current bug behavior?
Notebook renders as empty.
Relevant files and screenshots
See attached screenshots.