Search on the docs site does not work

[MalikRumi]

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Describe the bug (mandatory)

Search on the docs site does not work

To Reproduce (mandatory)

Explain the steps to reproduce the behavior, For example, include a minimal code snippet, example files, etc.
See screenshots

Expected behavior (optional)

Describe what you expected to happen (if not obvious).

Screenshots (optional)

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Your configuration (mandatory)

Ubuntu 18.04 & Python 3.7.2
PyMuPDF 1.16.2 from wheel

[JorjMcKie]

This seems to be a problem of the RTFD web site. It does not work whatever Sphinx theme is chosen. They obviously are trying to limit the CPU usage of their (sponsored) server.
It does work with a local copy to be downloaded / unzipped from here.

[cipri-tom]

Maybe it is related to this issue which recommends upgrading the Sphinx version ?

[JorjMcKie]

Well I have the latest Sphinx version (3.1.2) and I also rebuilt the html. Locally, there is no difference: search doesn't work.
I don't expect it would be different after uploading to RTD ...