Index: openacs-4/packages/acs-subsite/www/resources/core.js
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-subsite/www/resources/core.js,v
diff -u -N -r1.17.2.3 -r1.17.2.4
--- openacs-4/packages/acs-subsite/www/resources/core.js	20 Aug 2020 13:54:30 -0000	1.17.2.3
+++ openacs-4/packages/acs-subsite/www/resources/core.js	20 Aug 2020 14:11:51 -0000	1.17.2.4
@@ -197,6 +197,7 @@
 
     var xhr = new XMLHttpRequest();
     xhr.open("POST", url, true);
+    xhr.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
     xhr.onreadystatechange = function() {
         if (this.readyState == 4 && this.status == 200) {
             console.log('change href');