I created and configured simple Map Series story in ArcGIS online with a single map. Downloaded the Map Series template and uploaded to a web server. Portal is not installed on this server. Note - we these templates provide access private web services through a proxy. I followed the four steps for configuring template, including configured index.html with the app ID, as are described on GitHub.
When the application loads, it hangs with a 404 at a reference http://myserver.com/sharing/rest/portals/self?culture=en-us&f=json. This directory exists on ArcGIS online, but not on my server.
I just wanted to verify that portal is not required to be installed to run the app and also ask if I need to make any configuration changes to config.js for this most basic deployment to work.
Thanks for any suggestions.