fail to set base url with long path

What version of Codex is running?

0.47

What subscription do you have?

self-host openapi compatible api

Which model were you using?

_No response_

What platform is your computer?

WSL

What issue are you seeing?

The base url I got is composed of a long path but codex does not work with this paht.
For example, the base url is like https://example.com/this/is/a/very/long/url/path/llml/v1
Then it would reponde that this path: this/is/a/very/long/url/path/llml/v1 is not found.

What steps can reproduce the bug?

reproduce it with a long url path.

What is the expected behavior?

I would expect that the long path can work here.

Additional information

_No response_