Hello all, Not just a beer but a 6 pack to the person who can help me with this. We are deploying the Geoportal behind a reverse proxy server (Apache). The app can be seen here and the app can be see here http://certmapper.cr.usgs.gov/geoportal/ Everything works fine except the map service preview pages. Basically, the app is generating the preview embed url automatically server side which ends up being, not the external host name which it needs to be (certmapper.cr.usgs.gov) but the internal ip (188.8.131.52:8080) of the machine is actually resides on which is behind the reverse proxy and can not be seen from the outside. Take a look here http://tinyurl.com/7ckogul I also have a feeling that this is why the preview map is throwing an exception. Please help. I would be willing to even hardcode it if needed but can't find where or how this is getting generated.