python webbrowser module and query string with file:// protocol

Question

I have an application that uses Chromium Embedded Framework. As an alternative for a setup where CEF is not usable (Python 3.10+ for example), I would like to fallback to a webbrowser to launch a local webapp.

Since I don't have any hook to pass data to the webapp without CEF, I tried to pass a configuration string through a GET parameter. I don't know why, but the query string disappears when I use one with the file:// protocol

example :

webbrowser.open_new_tab('https://google.com?foo=bar')  # this works.
webbrowser.open_new_tab('file:///c:/some/dir/somefile.html?foo=bar')  # this doesn't works.

on the second example. A browser window is open and the URL in the address bar is file:///c:/some/dir/somefile.html

Any idea?