Keep the scheme of redirect location as the same of the request when scheme is empty in RequestRedirect HTTPRoute filter when Kong redirect plugin supports

[randmonkey]

Is there an existing issue for this?

• I have searched the existing issues

Does this enhancement require public documentation?

• I have added an Acceptance Criteria item for adding and/or adjusting public documentation (if applicable)

Problem Statement

The redirect plugin does not support a location without a scheme (example: konghq.com) to keep the scheme in the request, so we set the scheme of the location to http when scheme field is empty in RequestRedirect filter. This is not conformant with the gateway API specification where the scheme should be kept the same as the request if the scheme field is empty.

Proposed Solution

• When redirect Kong plugin supports keeping scheme in the redirect location, configure the redirect plugin to keep the scheme of the location.

Additional information

No response

Acceptance Criteria

• The scheme of redirect location is the same as the request when RequestRedirect filter does not specify a scheme.