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-rw-r--r--program/lib/washtml.php3
1 files changed, 2 insertions, 1 deletions
diff --git a/program/lib/washtml.php b/program/lib/washtml.php
index 0f8dc7ee6..e8befe835 100644
--- a/program/lib/washtml.php
+++ b/program/lib/washtml.php
@@ -273,7 +273,8 @@ class washtml
$this->config['base_url'] = '';
// Remove invalid HTML comments (#1487759)
- $html = preg_replace('/<!--[^->]*>/', '', $html);
+ // Don't remove valid conditional comments
+ $html = preg_replace('/<!--[^->[]*>/', '', $html);
@$node->loadHTML($html);
return $this->dumpHtml($node);