CMS API Version accepted for /sites but not /collections

I have no problem sending a GET request to /sites in the CMS API, but the /collections returns 400, ‘No API Version specified on request’, despite the fact that I am most certainly sending the exact same ‘accept-version: 1.0.0’ query param. :thinking:

Gotta send the params in the headers, not the query string… :man_facepalming: