API Rules not working when URL contains %20

[dfhoppe]

Description

We have seen that #1397 was implemented lately and we created our first API Rules v2alpha1.

However we are facing some issues when we have encoded spaces (%20) or “+” in the URL. To my understanding it should work also in these cases (correct me if I am wrong).

To detail more the issue we’re facing:

This is how our API Rule looks like:

apiVersion: gateway.kyma-project.io/v2alpha1
kind: APIRule
metadata:
  name: "{{ .Release.Name }}-approuter-apirulev2"
  namespace: "{{ .Release.Namespace }}"
spec:
  gateway: kyma-system/kyma-gateway
  hosts:
    - {{ printf "%s-approuter-%s.%s" .Release.Name .Release.Namespace .Values.global.domain }}
  rules:
    - methods:
        - GET
        - POST
        - PUT
        - PATCH
        - DELETE
        - HEAD
      noAuth: true
      path: /Stores/{**}
  service:
    name: {{ .Release.Name }}-approuter
    port: 8080

It works fine for this request:
GET /Stores/NoSpaceTest 200

But it always returns 404 for the requests below:
GET /Stores/Space%20Test 404

GET /Space+Test 404

Expected result
As all the requests are under /Stores I expected all of them to match the api rule, but as I said, the two last requests fail.

Actual result
Requests with %20 return 404

Steps to reproduce
Create API Rules v2alpha1 as above and send requests containing encoded whitespaces (%20) to a valid URL

Troubleshooting

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