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-rw-r--r--CHANGELOG1
-rw-r--r--program/lib/Roundcube/rcube_washtml.php3
2 files changed, 3 insertions, 1 deletions
diff --git a/CHANGELOG b/CHANGELOG
index ed0ea6ef3..541069004 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,6 +1,7 @@
CHANGELOG Roundcube Webmail
===========================
+- Fix handling of some conditional comment tags in HTML message (#1489004)
- Add rel="noreferrer" for links in displayed messages (#1484686)
- Fix so forward as attachment works if additional attachment is added by message_compose hook (#1489000)
- Add ability to toggle between HTML and text while viewing a message (#1486939)
diff --git a/program/lib/Roundcube/rcube_washtml.php b/program/lib/Roundcube/rcube_washtml.php
index 2a261419f..27dff9f48 100644
--- a/program/lib/Roundcube/rcube_washtml.php
+++ b/program/lib/Roundcube/rcube_washtml.php
@@ -413,7 +413,8 @@ class rcube_washtml
// Remove invalid HTML comments (#1487759)
// Don't remove valid conditional comments
- $html = preg_replace('/<!--[^->[\n]*>/', '', $html);
+ // Don't remove MSOutlook (<!-->) conditional comments (#1489004)
+ $html = preg_replace('/<!--[^->\[\n]+>/', '', $html);
// turn relative into absolute urls
$html = self::resolve_base($html);