Error with blank screen on a new conda installation

[EloyRD]

Hi,

I have a new installation of Anaconda on Windows 10 and had no issues when installing the packages. But when I run on Anaconda Prompt either jupyter lab or jupyter notebook I only get a blank screen on Firefox or Chrome.

The console shows the following error mesages:

On Firefox

Loading failed for the <script> with source “http://localhost:8888/lab/static/vendors~main.10079ad9676c70f28097.js”.  
lab:74:1
Loading failed for the <script> with source “http://localhost:8888/lab/static/main.13de647526d0a582493b.js”.

On Chrome

Refused to execute script from 'http://localhost:8888/lab/static/vendors~main.10079ad9676c70f28097.js' because its MIME type ('text/plain') is not executable, and strict MIME type checking is enabled.
lab:1 
Refused to execute script from 'http://localhost:8888/lab/static/main.13de647526d0a582493b.js' because its MIME type ('text/plain') is not executable, and strict MIME type checking is enabled.

Is there a value that I have to modify or a package that I am missing?

[EloyRD]

This issue is related to https://github.com/jupyter/notebook/issues/4469.
The PR on https://github.com/jupyter/notebook/pull/4468 solves the issue.
You look for the file notebookapp.py and add the new line.