For layers with a visible range set in ArcGIS Online, the pop-up window is automatically closed when zoomed outside the visible range.
Last Published: June 8, 2018ArcGIS Online
Bug ID Number
December 21, 2015
March 30, 2022
Will Not Be Addressed
The development team has considered the issue or request and concluded it will not be addressed. The issue's Additional Information section may contain further explanation.
This is not in any way intended to be a security feature, and in the scenario above the feature at some point would have to be visible on the map (showing its exact location) to even access the pop-up.