I have 2 use cases here:
I upload a .png file to ArcGis Online and I want to use that as a custom symbol. What is the URL to that file? I tried going to the file in the portal and using the URL generated by the "download" button, which gave me something like https://ago-item-storage.s3.region.amazonaws.com/abcdefg1234567890/my_custom_file.png?X-Amz-Security-Token=xxxxxxxxxxxxxxxxxxxx&X-Amz-SignedHeaders=host&X-Amz-Expires=300&X-Amz-Credential=xxxxxxxxxxxxxxxxxx&X-Amz-Signature=xxxxxxxxxxxxxx
That worked, but only for a few days, then it no longer existed. I think that link expires.
So, is there a way to get a permanent URL to these files?