Hi, i have published a Feature Class as a Feature Service to our Organizational Account. I have edited a WebMap with this Feature Service and published a Web Application (Editor Template ). Everything working fine and as expected. Now I want to make some customization to this Template (different title,....). I downloaded the Template and hosted it on my own WebServer, IIS 7. I enabled https with a self-signed certificate for the Server and when I started the WebTemplate (https://localhost/Chrome/index.html) I got an login mask with the request to login to ArcGIS Online, but this form always told me 'wrong username/password', please see screenshot.
It's definitely the correct user. I'm quite sure I'm missing some configuration on my Web Server. But which one?