lib/wurfl-lite.rb in wurfl-lite-1.1.3 vs lib/wurfl-lite.rb in wurfl-lite-1.1.4

@@ -3,11 +3,11 @@
 require 'hpricot'
 require 'amatch'
 
 class WURFL
 
-  LATEST = 'http://downloads.sourceforge.net/project/wurfl/WURFL/2.3/wurfl-2.3.xml.gz'
+  LATEST = 'http://downloads.sourceforge.net/project/wurfl/WURFL/2.3.1/wurfl-2.3.1.xml.gz'
   BROWSER_PATCH = 'http://downloads.sourceforge.net/project/wurfl/WURFL/2.3/web_browsers_patch.xml'
 
   attr_accessor :insertion, :substitution, :deletion
   attr_accessor :match_threshold
 
@@ -82,9 +82,11 @@
     end
 
   end
 
   def []( user_agent )
+    return if !user_agent
+
     if @devices_cached.has_key?( user_agent )
       return @devices_cached[ user_agent ]
     end
     device = @devices[ user_agent ]
     if device