Extend Actor input with a config from a URL.
For example, you can store your actor input in a source control, and import it here.
In case of a conflict (if a field is defined both in Actor input and in imported input) the Actor input overwrites the imported fields.
The URL is requested with GET method, and must point to a JSON file containing a single object (the config).
If you need to send a POST request or to modify the response further, use inputExtendFromFunction instead.
Example:https://raw.githubusercontent.com/jfairbank/programming-elm.com/master/cat-breeds.json