Strips out HTML comments.
diff --git a/system/core/Output.php b/system/core/Output.php
index 47c00ac..8992fc1 100755
--- a/system/core/Output.php
+++ b/system/core/Output.php
@@ -600,6 +600,9 @@
// Replace multiple spaces with a single space.
$output = preg_replace('!\s{2,}!',"\n",$output);
+ // Remove comments (non-MSIE conditionals)
+ $output = preg_replace('{\s*<!--[^\[].*-->\s*}msU','',$output);
+
// Remove spaces around block-level elements.
$output = preg_replace('{\s*(</?(html|head|title|meta|script|link|style|body|h[1-6]|div|p|br).*>)\s*}', '$1', $output);