public RedirectConfigBuilder allowDomains(String... domains) {
        return allowDomains(ImmutableList.copyOf(requireNonNull(domains, "domains")));
    }
Sets the domains that are allowed for automatic redirection. If the
{@linkplain URI#getHost() host component} of a redirection URI equals to the specified domains,
automatic redirection is executed.

<p>If the {@link WebClient} is created <b>without</b> a base URI, the {@link WebClient} executes
automatic redirection to all domains by default.
If the {@link WebClient} is created <b>with</b> a base URI, automatic redirection is executed to
the domain of the base URI by default.
core/src/main/java/com/linecorp/armeria/client/redirect/RedirectConfigBuilder.java