I believe I have found the problem, and it may be a bug. As reported elsewhere, the config_template only is applied to the default COS. Thus the only way to make Zimlets work under non-default COS's, that I have found, is to manually:
Code:
zmprov mc <non-default-COS> zimbraProxyAllowedDomains "*.domain.com"
Now the rather large problem, and what makes this seem even more like a bug, is that although the config isn't applied to non-default COS's, re-deploying the Zimlet wipes out the zimbraProxyAllowedDomains for all non-default COS's. So each time you redeploy the Zimlet you have to go and make that manual change. This is why I was constantly getting 403's, my manual settings kept getting wiped without my knowing it.
If it can automatically wipe my manual settings, it would be nice if it could automatically apply the supplied config settings I want to begin with so I don't need to do it manually
I suspect this may also be why I couldn't access the global settings from within the
js code, the config_template is probably not accessible from non-default COS's. Time to test that theory now.
Cheers,
RioGD