Problem

When Admins login into Fisheye they are not able to see administration options. Only a blank page is displayed.

If you inspect the page through console you will see the following error: 

Refused to display 'http://fisheye.com/static/n5uu6o/gwt/AdminGwtModule/2DBD181FCEF4B86199AEF774DEEB40DD.cache.html' in a frame because it set 'X-Frame-Options' to 'Deny'

Cause

This is most likely an issue with your proxy configuration. Please check with your proxy administrator. 

Workaround

Install something like "Ignore X frames Options" in Mozilla Firefox. 

Add the following line to the proxy configuration:

add_header X-Frame-Options ALLOW;

This document may be helpful in troubleshooting your configuration.

https://developer.mozilla.org/en-US/docs/Web/HTTP/X-Frame-Options

Resolution

Check with your proxy administrator the cause for the issue.