Machine is a personal computer, Win 7, browser Firefox or Chrome. My account is a free ArcGIS Dev. account.
Usually I work with the Story Map application and use XAMPP to test my stuff, The instruction is clear to register with the (full) computer name, say: "uxxxxxx". No Domain but Workgroup "WORKGROUP". Redirection URIs would be:
In AGOL: My Content/
Add Item /
An Application / URL:
http://uxxxxxx and https:uxxxxxx
Still getting the 400 when suppling the client ID ... what am I doing wrong? Tried with both browsers, deleting the signininfo.json, reinstalling WAB. Are the URIs correct? Can I use WAB with the free / trial dev account?
Any help on this topic is much appreciated!