Invalid query parameter

invalid_query_parameter HTTP 422

A filter, sort, include or fields parameter is not accepted.

Nothing is ignored silently: an unrecognised parameter fails the request rather than returning an unfiltered page that looks correct. The detail lists what is accepted for that parameter, and errors names the offending one — so the response usually tells you the fix without needing this page.

How to react to this in code

Switch on the code member — invalid_query_parameter — which is stable. Do not parse the type URI: it points here, and where "here" is may change.