Index: openacs-4/packages/xowiki/www/resources/streaming-chat.js
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/www/resources/streaming-chat.js,v
diff -u -N -r1.1.2.2 -r1.1.2.3
--- openacs-4/packages/xowiki/www/resources/streaming-chat.js	22 May 2020 09:29:19 -0000	1.1.2.2
+++ openacs-4/packages/xowiki/www/resources/streaming-chat.js	25 May 2020 06:52:30 -0000	1.1.2.3
@@ -38,7 +38,7 @@
             if (status != 200 && status != 0) {
                 console.error('Something wrong in HTTP request, status code = ' + status);
             }
-            if (status.match(/^4\d\d$/) == null) {
+            if (status < 400 || status >= 500) {
                 console.log('Server has closed the connection. Try to reconnect in 10s...');
                 setTimeout(chatSubscribe, 10000, subscribe_url);
             }