mustDelegateToParent
The REPL impl (script host + template) MUST come from our urls so it links the scripting API we own; everything else that needs a single shared identity with the game/JDK goes to the parent.
The REPL impl (script host + template) MUST come from our urls so it links the scripting API we own; everything else that needs a single shared identity with the game/JDK goes to the parent.