[Python-modules-team] Bug#847225: jupyter-notebook: Strange square appears when displaying matplotlib inline plots

[Raymundo Ramos]

Hi everyone

I can confirm this happens in chrome and chromium with the
"#overlay-scrollbars" flag (chrome://flags) enabled. The current workaround
would be to disable "#overlay-scrollbars". This is related to the property
overflow for .CodeMirror-scroll which is currently set to 

overflow: scroll !important;

in "codemirror.css". It would be solved by using

overflow-y: hidden;
overflow-x: auto;

as seems to be set in "codemirror.less".

Greetings
Ray