title: AWS API-Gateway: Invalid cache key parameter specified
body: <p>In the "method execution" page, I checked several "URL Query String Parameters" as "Caching". Now, when I try to uncheck one of them, remove a URL Query String, or create a new URL Query string with caching, I get the error, "Invalid cache key parameter specified" in a red box. None of my changes save. I did not yet enable caching at the stage level.</p>