diff --git a/lib/el_finder_s3/connector.rb b/lib/el_finder_s3/connector.rb
index <HASH>..<HASH> 100755
--- a/lib/el_finder_s3/connector.rb
+++ b/lib/el_finder_s3/connector.rb
@@ -78,7 +78,6 @@ module ElFinderS3
     def run(params)
 
       @adapter = ElFinderS3::Adapter.new(@options[:server], @options[:cache_connector])
-      # @adapter = ElFinderS3::FtpAdapter.new(@options[:server])
       @root = ElFinderS3::Pathname.new(adapter)
 
       begin
diff --git a/lib/el_finder_s3/dummy_cache_client.rb b/lib/el_finder_s3/dummy_cache_client.rb
index <HASH>..<HASH> 100644
--- a/lib/el_finder_s3/dummy_cache_client.rb
+++ b/lib/el_finder_s3/dummy_cache_client.rb
@@ -12,5 +12,9 @@ module ElFinderS3
     def delete(key)
       nil
     end
+
+    def exist?(key)
+      false
+    end
   end
 end
Added exists method to dummy_cache_client.rb