There is one interesting thing in URL format:
Parameters in Path Segments of URL.
For more information see section "2.2.5" in
"O'Reilly - HTTP - The Definitive Guide".
or in official specification
This book can be found freely in Internet.
Let's consider the following URL:
I do not know any example of exactly parameters in the path segment.
But close example is connection and SFTP parameters in (expired) SFTP URL proposal.
There's one proposed connection parameter, the
fingerprint for SSH host key fingerprint:
And one proposed SFTP parameter, the
typecode for transfer mode (ascii vs. binary). There's no official example, but it should be like:
(what actually, while semantically different, has the syntax of your "path" parameter)