The extent of a web map changes when clicking on 'View Larger map' as it passes the extent URL parameter.
Last Published: March 13, 2015ArcGIS Online
Bug ID Number
February 27, 2015
August 21, 2020
Operating System Version
7 64 Bit
After review by the development team, it has been determined that this issue is related to a known limitation with the software that lies outside of Esri's control. The issue's Additional Information section may contain further explanation.
Embedded map takes the visible map extent and saves that in the URL. When opened it makes sure that this extent is visible in the map.