--- loncom/interface/lonfeedback.pm	2005/02/17 08:29:42	1.153
+++ loncom/interface/lonfeedback.pm	2005/03/01 03:21:04	1.155
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Feedback
 #
-# $Id: lonfeedback.pm,v 1.153 2005/02/17 08:29:42 albertel Exp $
+# $Id: lonfeedback.pm,v 1.155 2005/03/01 03:21:04 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1950,6 +1950,9 @@ END
 sub print_showposters {
     my ($r,$symb,$previous,$feedurl,$sortposts) = @_;
 
+    &Apache::loncommon::content_type($r,'text/html');
+    $r->send_http_header;
+
     &Apache::lonenc::check_encrypt(\$symb);
     my $crs='/'.$ENV{'request.course.id'};
     if ($ENV{'request.course.sec'}) {
@@ -2330,7 +2333,7 @@ sub clear_out_html {
       # <SUP>
       %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
 	     BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, DIV=>1, IMG=>1,
-	     M=>1, SUB=>1, SUP=>1, SPAN=>1, 
+	     M=>1, ALGEBRA=>1, SUB=>1, SUP=>1, SPAN=>1, 
 	     H1=>1, H2=>1, H3=>1, H4=>1, H5=>1);
   }
 # Do the substitution of everything that is not explicitly allowed