Upstream-Web-Proxy

Oh, that´s not good. Is there any hint if this is implemented in the XG? Is there currently a way to solve it differently ?

Oh, that´s not good. Is there any hint if this is implemented in the XG? Is there currently a way to solve it differently ?

Had this kind of requirement on XG Once and solved it with a UTM Parent proxy which cross forward the traffic to the other parent proxies. 

The feature request is: https://ideas.sophos.com/forums/330219-xg-firewall/suggestions/10901727-multiple-upstream-web-proxies

If the upstream proxies support standard/explicit/direct mode then in your client browsers you can configure that some destinations should go through one proxy, and other destinations through another proxy, and other things no proxy (which then would possibly go through the XG's transparent proxy).

You can create a wpad.dat/proxy.pac file that you then use to store that configuration.  Any browser that is using "automatically detect settings" will use the that configuration.

https://community.sophos.com/kb/en-us/115282