The sharing proxy for ArcGIS Online, such as 'http://ess.maps.arcgis.com/sharing/proxy', returns a "502 Bad Gateway" error in some cases when attempting to generate a token against an ArcGIS for Server token service and when an alias is used for the server.
Last Published: July 28, 2015ArcGIS for Server
Bug ID Number
October 15, 2014
May 31, 2023
ArcGIS for Server
Operating System Version
2008 R2 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.
This issue is caused by using non-trusted certificates.
Use Cross Origin Resource Sharing (CORS) enabled web browsers such as Internet Explorer 10 or later, Google Chrome, or Mozilla Firefox.