Allow adding fields to lists in Modern sites
Currently, the endpoint "/_api/web/lists/getbytitle('" + $Library.Title + "')/Fields" gives a 403 forbidden when doing a POST to create a new field. This exact endpoint, with the same body content works against classic sites, but not modern.
It appears to be blocked due to custom scripting being disabled on modern sites. For those of us who wish to leave the setting disabled and stay with defaults, but still leverage REST, this seems like an odd choice to be blocked. We verified that a site collection admin sees this behavior until custom scripting is enabled.
we can create lists, subsites, content, but not fields?