We have been trying several different ways to create a hyperlink within a pop-up that will open up an image stored on our local file server. Every time the link doesn't do anything. We tried publishing directly from ArcMap with the hyperlink as a field and defining field-based hyperlink properties. We've tried publishing a related table with the hyperlinks that way too. Nothing seems to work!
As I understand it, AGOL supports linking to photos found on http or https URLs, but surely someone has come up with a way to link to local images (either using "file://" or "\\188.8.131.52")? We don't want to go down the path of publishing these as attachments, for storage and security reasons. Any help would be appreciated!