Print Dialog Extension - Connecting to Network when running the PDE on a sandboxed app

I am creating a Print Dialog Extension (PDE) for Mac OSX. In that PDE, I need to connect to the network for authentication.

However, due to sandboxing, when I tried the PDE in TextEdit, I cannot connect to LDAP. From the console, it says sandboxd denied network-outbound for TextEdit. Apparently, the sandboxed TextEdit does not allow network connections.

I just like to ask, what is the best way to fix this?

How can I enable network connection in my PDE, even if the app it runs on does not allow it?

Can I also extend the sandbox profile of an app using my PDE (to add network connection entitlements)?

Any help or tips will be greatly appreciated.