Having configured a webproxy, push works for all components. but retrieving XACML from a policy does not work.
It seems to me like it is not going through the proxy, as the request never arrives at PdP for me.
The RestTemplates used for the push endpoints is using the RestTemplateIdiom. See https://github.com/OpenConext/OpenConext-manage/blob/main/manage-server/src/main/java/manage/control/RestTemplateIdiom.java#L39
The PdPController also uses the RestTemplateIdiom, but with an empty uri and therefore the proxy settings are ignored. See https://github.com/OpenConext/OpenConext-manage/blob/main/manage-server/src/main/java/manage/control/PdPController.java#L44