How to get the values from a gquery out of the api?

[E-nergium]

I'm trying to get data out of my scenario's. I do follow the gquery from here: https://docs.energytransitionmodel.com/api/scenario-basics#query-a-scenario

I'm testing with postman. But no result from my scenario.

Why not? What do I do wrong?

my test scenario: https://engine.energytransitionmodel.com/api/v3/scenarios/975968?gqueries=costs_of_capital_in_electricity_production

[E-nergium]

fixed