mod_http_oauth2: Reuse JWT issuance time as substitute for auth time Makes the token shorter. Since iat and auth_time are generated at about the same time they would only differ by a few microseconds anyway.

This module lets you block connections to remote servers at the s2s
level.

``` {.lua}
modules_enabled = {
    -- other modules --
    "s2s_blacklist",

}
s2s_blacklist = {
    "proxy.eu.jabber.org",
}
```