Following ESRI's Help how to create and deploy SOE (http://resources.arcgis.com/en/help/arcobjects-net/conceptualhelp/#/How_to_enable_and_test_the_REST_SOE_on_a_service/000100000nwn000000/), I created a SOE project with customized code. After the publishing, I view the service on IE. I clicked the supported Extensions: mySOEApp to navigate the page. Then I clicked the mySOEApp again. The error displays: Invalid URL, Code 400. I know there is something wrong in my code. How can I check to make the correction? Thanks.