Jupyterlab: "\r" acts as "\n" in notebook's output

[zachmoshe]

Seems like no matter what kernel I use, if I enter 'print("a\rb")' I see 'a' and 'b' as separate lines in the cell's output.
It's annoying as many packages use '\r' for textual progressbars (Keras for example) which leads to a lot of output..

[blink1073]

Hi @zachmoshe, thank you for the report. It looks like we need to bring forward the output cleanup functionality of the classic notebook.