Create a proxy repo named pypi-org to remote https://pypi.org.
Open this web page in a web browser:
Examine the relative links in the page, they are of this form:
<a href="../../packages/cf/a1/20d00ce559a692911f11cadb7f94737aca3ede1c51de16e002c7d3a888e0/paramiko-2.7.2.tar.gz#sha256=7f36f4ba2c0d81d219f4595e35f70d56cc94f9ac40a6acdf51d6ca210ce65035" rel="internal">paramiko-2.7.2.tar.gz</a><br/>
This means every link you click on ends up at an invalid path 404 not found that does not exist:
The official repository instead does a 301 redirect to a page with ending slash if an ending slash is not present in the original request:
Do what the official registry does when an ending slash is missing and redirect to a page where the rendered relative links will actually work.