fixes #1504

app/controllers/note_previews_controller.rb

@@ -0,0 +1,12 @@
+class NotePreviewsController < ApplicationController
+  respond_to :json
+
+  def show
+    @body = DText.sanitize(params[:body].to_s)
+    respond_with(@body) do |format|
+      format.json do
+        render :json => {:body => @body}.to_json
+      end
+    end
+  end
+end