Adding a query string parameter to an upstream health check

Is it possible to add a query string parameter ?myparam=myvalue to an active health check used to assess an upstream’s targets health?

I have tried adding the query string to the but this results in a schema violation (characters outside of the reserved list of RFC 3986 found). This is understandable since the field is http_path and not a full http_url.

Is there a way to configure a query string for active healthchecks?

Thank you!