Is it possible to rewrite the path passed to the container?
“domain/path” rewrite to “container/” (document root) oder “domain/another_path”?
This is something #1871 would allow.
It won’t actually solve the problem for a lot of applications though… Anything that generates absolute or root-relative links/images/script tags/etc in the responses will not know to respond with the /path prefix and those links will be broken.
Different sub-domains are a much more reliable solution to routing multiple applications (but increase cost for a wildcard cert if doing SSL).