jsonGet() does not work with a tag path as a paramete

I am using an expression tag that executes the jsonGet function.
I need to input a tag path that contains a json object for its value property as a parameter into the jsonGet function however, it returns null.

For testing purposes I entered a json object directly into the jsonGet function instead of referencing another tag and that works.

I need to get it working with a tag path as a parameter thou.

Take a look at the pics.

What is the data type of your json tag? Is it a document?

Also, you're throwing around a lot of loose terminology.

You need to reference the value of a tag

In this part, you're actually inputting a string representation of a json object, not a json object itself.