mod_unified_push: Allow additional CORS headers for unified push (fixes #1985) - Request header "TTL" is mandated by the HTTP Push specification RFC 8030: https://datatracker.ietf.org/doc/html/rfc8030#section-5 - Firefox sends "Content-Encoding" with a HTTP form submission, so it is required when using the Unified Push testing tool at https://unifiedpush.org/test_wp.html (with the full URL being delivered by the UP-Example Android app) Adding both headers makes the Unified Push testing tool work from the browser. Resolves: https://issues.prosody.im/1985

local st = require "util.stanza";

local important_payloads = module:get_option_set("csi_important_payloads", { });

module:hook("csi-is-stanza-important", function (event)
	local stanza = event.stanza;
	if st.is_stanza(stanza) then
		for important in important_payloads do
			if stanza:find(important) then
				return true;
			end
		end
	end
end);