If-None-Match header does not get passed to the upstream

Solution Verified - Updated -

Issue

  • I have a backend with 2 methods configured in 3scale, when consuming directly to the microservice the result is HTTP status code 304
  • But at the time of consuming it through the APIcast, it does not forward the header If-None-Match to upstream and the response is HTTP 200, when expected response is 304.
  • How can I resolve this issue?

Environment

  • Red Hat 3scale API Management
    • On-premises
      • 2.10.0
      • 2.9
    • SaaS with APICast 2.10 or lower

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