Scripting

My environment uses a number of Java-based web-apps that are older and users are chronically calling into the helpdesk to fix versions of Java being blocked on our websites. We've got a Java package and rule set that we deploy to end users, but individual browsers represent another layer of security prompts that some of our users find it difficult to navigate around.

What I'd like to do is create security exceptions within Safari to specific websites so that these prompts never reach them. But this is proving difficult at least from the avenues I normally go to. I know that within the shell you can use "Defaults write com.apple.safari ManagedPlugInPolicies" to write values, but I've tried a number of different ways and generally get "Rep argument is not a dictionary" errors if I attempt more than a single line's worth of modifications, and I'm running out of leads to follow in refining it.

And maybe I'm going about this all wrong. Has anyone had experience with deploying these kinds of browser modifications to your users?