Thanks for the info about that doc.
A novice question here,
Just wondering what causes the proxy loop in the first place? I understood that this can occur when there is proxy chaining in place since proxies forward request back and forth causing a loop.
How about with a single proxy, what causes it to forward the request to itself? Does this happen only to blocked sites?
Well I have now resolved the issue, and whilst the reply from Jon was very useful adding the rule made no change
However within the Configuration -> proxies there is a little tick box that is ticked "Add Via HTTP Header"
Once I removed that from both Gateways in the cluster it fixed the issue.
I have included an image to assist. And I hope it helps someone else in the future
Best Regards, and thanks