However, the same does not work when I am accessing a comment that is not posted on my own page, the from field is never returned. Is it possible to get the author of a comment that is posted on a different page?
Facebook Graph API Comment Doesn't Return From
nr: #1 dodano: 2018-01-08 08:01
Is it possible to get the author of a comment that is posted on a different page?
No, that information is not available to you any more.
/page/* — User information will not be included in GET responses for any objects owned by (on) a Page unless the request is made with a Page access token. This affects all nodes and edges that return data for objects owned by a Page.