possible url normalization issues

[philbudne]

A few things I found while looking for pathological cases:

http://do.ma.in:80/what/ever is normalized to http://do.ma.in/what/ever
and so is https://do.ma.in/what/ever
but https://do.ma.in:442/what/ever comes out as http://do.ma.in:443/what/ever

http://10.2.3.4/hello/world.html comes out as http://2.3.4/hello/world.html

Spaces and %20 in query strings are normalized to +
but %20 and + in path are left as is
space is changed to %20

UTF-8 in path is %-quoted, but %27 is turned into '
(BUT ' is left alone, so the result is a uniform, but ' is officially a delimiter in https://datatracker.ietf.org/doc/html/rfc3986#section-2.2)

The above two were seen in the wild in:
http://www.seychellesnewsagency.com/articles/19841/Over++Seychelles%27+households+received+financial+assistance+following+Dec.++disasters

[rahulbot]

Thinking about the application domain, I think ports should be ignored for normalization.
The IP address being trimmed seems like a bug, though perhaps not one that has negative impacts.
I'm not sure what to do about the escaping.