Plots do not appear after upgrading Bokeh from 2.3.3 to 2.4.3

Using Python 3.11 on Windows 11. Upgraded Bokeh from 2.3.3 to 2.4.3 leaving everything else the same. Bokeh plots no longer appear.

In Firefox console get:

Uncaught ReferenceError: Bokeh is not defined
    <anonymous> file:///C:/git/hosttools/python/maxwell_dm/test.html:9

This is the HTML it is complaining about

    <script type="text/javascript">

I get the same problem with a fresh install of Python 3.11.1 and Bokeh 3.1.0.

That is not enough information for anyone to help you. What code are you running? Please include a minimal example that reproduces the error.