404 when accessing approval workflow log via direct html link.

app/controllers/dmsf_workflows_controller.rb

@@ -231,6 +231,10 @@ class DmsfWorkflowsController < ApplicationController
   end
 
   def log
+    respond_to do |format|
+      format.html
+      format.js
+    end
   end
 
   def edit

app/views/dmsf_workflows/log.html.erb

@@ -0,0 +1,22 @@
+<%
+# encoding: utf-8
+
+# Redmine plugin for Document Management System "Features"
+#
+# Copyright (C) 2011-17   Karel Pičman <karel.picman@kontron.com>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.%>
+
+<%= render :partial => 'log', :locals => {:workflow => @dmsf_workflow} %>