404 GET /static/components/MathJax/config/TeX-AMS_HTML-full.js?rev=2.6.0

I can get the jupyter notebook to run fine. But when trying to experience jupyter lab, my browser shows only a blank screen and the following error message is generated. What can I do to get the jupyter lab app working?

$ jupyter lab --no-browser
[I 03:57:43.031 LabApp] Writing notebook server cookie secret to /run/user/504/jupyter/notebook_cookie_secret
[I 03:57:43.336 LabApp] JupyterLab alpha preview extension loaded from /mnt/myth/john/projects/jupyter/venv/jupyter-venv/lib64/python3.6/site-packages/jupyterlab
[I 03:57:43.339 LabApp] Serving notebooks from local directory: /mnt/myth/john/projects/jupyter/bin
[I 03:57:43.339 LabApp] 0 active kernels
[I 03:57:43.339 LabApp] The Jupyter Notebook is running at:
[I 03:57:43.339 LabApp] http://localhost:8888/?token=84751f6604e8e273c667b5982106b3d36c2bc289caba217b
[I 03:57:43.339 LabApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[C 03:57:43.340 LabApp]

Copy/paste this URL into your browser when you connect for the first time,
to login with a token:
http://localhost:8888/?token=84751f6604e8e273c667b5982106b3d36c2bc289caba217b
[I 03:58:36.814 LabApp] 302 GET /?token=84751f6604e8e273c667b5982106b3d36c2bc289caba217b (127.0.0.1) 0.46ms
[W 03:58:36.949 LabApp] 404 GET /static/components/MathJax/config/TeX-AMS_HTML-full.js?rev=2.6.0 (127.0.0.1) 21.82ms referer=http://localhost:8888/lab?token=84751f6604e8e273c667b5982106b3d36c2bc289caba217b

Start by reproducing the blank JupyterLab screen with `jupyter lab --no-browser` and inspect the browser request for `/static/components/MathJax/config/TeX-AMS_HTML-full.js?rev=2.6.0`. Determine why this asset returns 404, then verify that JupyterLab loads without the missing-resource error.

Written by the indexing model from the issue text.