Index: openacs-4/packages/xooauth/www/admin/lti-test.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xooauth/www/admin/Attic/lti-test.tcl,v
diff -u -r1.1.2.1 -r1.1.2.2
--- openacs-4/packages/xooauth/www/admin/lti-test.tcl	6 Dec 2020 09:02:11 -0000	1.1.2.1
+++ openacs-4/packages/xooauth/www/admin/lti-test.tcl	11 Mar 2021 10:54:36 -0000	1.1.2.2
@@ -138,8 +138,7 @@
 
         ## Add potential GET parameters from the launch url to the signature parameters
         array set uri [uri::split $launch_url]
-        foreach pair [split $uri(query) &] {
-           lassign [split $pair =] key value
+        foreach {key value} [ns_set array [ns_parsequery $uri(query)]] {
            lappend signature_parameters [list [ns_urldecode $key] [ns_urldecode $value]]
         }