Fix handling of some conditional comment tags in HTML message (#1489004)

Aleksander Machniak

2013-03-22 1bce1420589c62176dd34bb5fc0fab206a25d41e

 program/lib/Roundcube/rcube_washtml.php

@@ -413,7 +413,8 @@

        // 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);