lib/trac-wiki/parser.rb in trac-wiki-0.3.34 vs lib/trac-wiki/parser.rb in trac-wiki-0.3.35

@@ -320,10 +320,10 @@
     end
 
     # Escape any characters with special meaning in HTML using HTML
     # entities. (&<>" not ')
     def escape_html(string)
-      Parser.escapeHTML(string)
+      string.nil? ? '' : Parser.escapeHTML(string)
     end
 
     def self.escapeHTML(string)
       string.gsub(/&/, '&amp;').gsub(/\"/, '&quot;').gsub(/>/, '&gt;').gsub(/</, '&lt;')
     end