Problem with "\h"

[Siamesecat]

I tried writing a referer filter to deal with the problem of \h not working on hostnames ending with country codes. It doesn't work. What am I doing wrong?

Code:

[HTTP headers]
In = FALSE
Out = TRUE
Key = "Referer: Hide previous host v2 (out)"
Match = "((*|)(http(s|)://)\0\1/*)($OHDR(Host:\s\2))(^$TST(\1=\2))"
Replace = "\0\2"

This does not work either. Why??

Code:

In = FALSE
Out = TRUE
Key = "Referer: Hide previous host v2 (out)"
Match = "?&(($OHDR(Host:\s\1))&((*|)(http(s|)://)\0$TST(^\1*)))"
Replace = "\0\1"

This resulted in a referer whose label is there, but nothing is visible after it.

Code:

In = FALSE
Out = TRUE
Key = "Referer: Hide previous host v2 (out)"
Match = "?&(^($OHDR(Host:\s\1))&((*|)(http(s|)://)\0$TST(\1*)))"
Replace = "\0\1"

This removes the referer whether the host names are the same or not.

Code:

In = FALSE
Out = TRUE
Key = "Referer: Hide previous host v2 (out)"
Match = "?&($URL((http(s|)://)\0\1/*))&(^($OHDR(Host:\s$TST(\1))))"

How do you make a match work only if a test fails? Obviously, I haven't understood how to do that.