I use a server method in my project, when I run in preview mode and get a preview of my project on a web browser, I have the expected result. However, when I run it on emulator or device I have the following error message: "POST http://192.168.1.247:8108/rest/SuperHero/myMethod 403 (Forbidden)".
Do you know why I have this error? What is the cause of this? How can I fix this ?