We were looking to embed an ArcGIS Online map that is shared with everyone onto part of our company website. We thought this would be allowed. Even though it is publicly shared it is still asking for a login prompt. Is there any way simply to embed and show the map without prompting to login, which is causing errors on the embedded map.
You also need to share the layers, used in the map, with public?
...and the group is is in needs to be public also.
OK, I swear it asked me if I wanted to share all the layers when I created the embed code.
I will double check the actual layers in "my content" and make sure they are shared appropriately.