- Fix handling of empty <U> tags in HTML messages (#1488225)

CHANGELOG

@@ -1,6 +1,7 @@
 CHANGELOG Roundcube Webmail
 ===========================
 
+- Fix handling of empty <U> tags in HTML messages (#1488225)
 - Add content filter for embedded attachments to protect from XSS on IE (#1487895)
 - Use strpos() instead of strstr() when possible (#1488211)
 - Fix handling HTML entities when converting HTML to text (#1488212)

program/lib/washtml.php

@@ -108,7 +108,7 @@ class washtml
 
   /* Block elements which could be empty but cannot be returned in short form (<tag />) */
   static $block_elements = array('div', 'p', 'pre', 'blockquote', 'a', 'font', 'center',
-    'table', 'ul', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'ol', 'dl', 'strong', 'i', 'b');
+    'table', 'ul', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'ol', 'dl', 'strong', 'i', 'b', 'u');
 
   /* State for linked objects in HTML */
   public $extlinks = false;