kaspersky 2021 anti-banner is causing issue with jupyterlab, everything is fine if I turn off anti-banner or using Kaspersky 2020. Jupyterlab seems to be not able to connect with python kernel (something with _xsrf as you can see in the screenshot, I guess kaspersky anti-banner modified the traffic/cookie somehow), it will be a potentially big issue as Jupyterlab is widely adapted in scientific community to run python.
kaspersky 2021 anti-banner is causing issue with jupyterlab, everything is fine if I turn off anti-banner or using Kaspersky 2020. Jupyterlab seems to be not able to connect with python kernel (something with _xsrf as you can see in the screenshot, I guess kaspersky anti-banner modified the traffic/cookie somehow), it will be a potentially big issue as Jupyterlab is widely adapted in scientific community to run python.
My system:
Win10 x64 2004
KIS 2021 MR1 patch a
Python 3.8.5
jupyterlab 2.1.5
Way to reproduce in a clean VM: