[Serusers] Random Value in Custom Headers

[Andrey Kouprianov]

   Hi all:

Actually, I already posted this kind of question, but once again: can
I configure SER to leave custom headers in responses, because SER
seems to strip them off. The problem is that my custom headers are not
the same all the time. For instance,

X-Header: blah <random value>

This <random value> is always changing, that's why I cannot use
append_hf() function. Can I somehow make SER leave custom headers
untouched?