I am making a simple ToDoApp with MEAN (Angular 2) stack but I have a problem with the http.post request. Always when I am running the post method, the current JSON object gets inserted into the database. But right after I get an error message and also my current server connection breaks down. Insert method: The error in the console: CORS is allowed on the backend side and I don't know what else to try. Any suggestions? Continue reading...
