Describe the bug
gateway is apparently sensitive to the http "host" header.

If it is wrong, you may get an http 400 response on for example the jwk url.

if it is correct for ipv6, you'll get an http 500... the fact that ipv6 has colons in the string, but host can also have a port, means that some code parses these strings wrong. looks like gateway is doing that.

result: zss can't get a valid jwk response from gateway at startup when using ipv6  because gateway can't handle the request because of the host header causing some sort of parsing error

Note:- I'll add more details about the issue in sometime