I have the following situation:
- there is a main, non-sandboxed application;
- there is a Finder Sync plugin, bundled into this application. Sandboxed;
- there is a XPC helper bundled into this application. Sandboxed.
Problem: opening NSXPCConnection from main application to XPC helper works fine.
However, I cannot connect to it from the Finder Sync plugin, and do not receive any error information (just callback 'Connection invalidated' right after trying to open it).
Am I doing something wrong, or this should be done in other way? For instance, by moving XPC helper to the separate application? Some problems with entitlements?