1 files changed, 7 insertions, 2 deletions
diff --git a/rt/share/html/Ticket/Attachment/dhandler b/rt/share/html/Ticket/Attachment/dhandler
index 75efeffbc..eb291e4f5 100755
--- a/rt/share/html/Ticket/Attachment/dhandler
+++ b/rt/share/html/Ticket/Attachment/dhandler
@@ -48,7 +48,7 @@
 <%perl>
     my ($ticket, $trans,$attach, $filename);
     my $arg = $m->dhandler_arg;                # get rest of path
-    if ($arg =~ '^(\d+)/(\d+)') {
+    if ($arg =~ m{^(\d+)/(\d+)}) {
         $trans = $1;
         $attach = $2;
     }
@@ -79,7 +79,12 @@
      my $enc = $AttachmentObj->OriginalEncoding || 'utf-8';
      my $iana = Encode::find_encoding( $enc );
      $iana = $iana? $iana->mime_name : $enc;
-	 $content_type .= ";charset=$iana";
+
+     require MIME::Types;
+     my $mimetype = MIME::Types->new->type($content_type);
+     unless ( $mimetype && $mimetype->isBinary ) {
+	    $content_type .= ";charset=$iana";
+     }
 
      $r->subprocess_env('no-gzip' => 1); # disable mod_deflate
      $r->content_type( $content_type );