Diff

mod_http (and dependent modules): Make CORS opt-in by default (fixes #1731) The same-origin policy enforced by browsers is a security measure that should only be turned off when it is safe to do so. It is safe to do so in Prosody's default modules, but people may load third-party modules that are unsafe. Therefore we have flipped the default, so that modules must explicitly opt in to having CORS headers added on their requests.

--- a/plugins/mod_websocket.lua	Mon Mar 28 14:40:21 2022 +0100
+++ b/plugins/mod_websocket.lua	Mon Mar 28 14:53:24 2022 +0100
@@ -355,6 +355,9 @@
 	module:provides("http", {
 		name = "websocket";
 		default_path = "xmpp-websocket";
+		cors = {
+			enabled = true;
+		};
 		route = {
 			["GET"] = handle_request;
 			["GET /"] = handle_request;