Please use HTTPS protocol error on Kong API Gateway

FROM kong:latestENV KONG_DATABASE=postgresENV KONG_PG_HOST=autorack.proxy.rlwy.netENV KONG_PG_PORT=59190  ENV KONG_PG_USER=userENV KONG_PG_PASSWORD=psswordENV KONG_PG_DATABASE=railwayENV KONG_PROXY_ACCESS_LOG=/dev/stdoutENV KONG_ADMIN_ACCESS_LOG=/dev/stdoutENV KONG_PROXY_ERROR_LOG=/dev/stderrENV KONG_ADMIN_ERROR_LOG=/dev/stderENTRYPOINT ["/bin/sh", "-c", "set -e; kong migrations bootstrap; kong start && tail -f /dev/null"]EXPOSE 8000 8443 8001 8444 8002 8445 8003 8004

using this docker file i have deployed Kong API Gateway on railway.app. And also i have deployed a test backend project. Then i have created Service and Route on Kong as below configurations.

service json

{"tags": null,"ca_certificates": null,"name": "yo_direct_service","connect_timeout": 60000,"read_timeout": 60000,"host": "kong-bc-one.sample.app","protocol": "https","write_timeout": 60000,"enabled": true,"retries": 5,"tls_verify": null,"tls_verify_depth": null,"client_certificate": {"id": "3f7b5ea8-b84f-4bfb-9ed8-10651019b164"  },"id": "9c2a9507-83fa-487a-9559-4eb23b58dfc9","port": 443,"path": "/yo"}

route json

{"tags": [],"methods": null,"name": "yo_direct_route","request_buffering": true,"response_buffering": true,"strip_path": true,"protocols": ["http","https"  ],"path_handling": "v0","regex_priority": 0,"headers": null,"hosts": null,"paths": ["/yo"  ],"service": {"id": "9c2a9507-83fa-487a-9559-4eb23b58dfc9"  },"id": "c4281174-c1a5-4420-993e-3c695f85a3f2","preserve_host": false,"sources": null,"https_redirect_status_code": 426,"destinations": null,"snis": null}

Then i have try https://kong-dev.sample.app/yo api and got correct response. Then i have change the route configuration to

{"tags": [],"methods": null,"name": "yo_direct_route","request_buffering": true,"response_buffering": true,"strip_path": true,"protocols": ["https"  ],"path_handling": "v0","regex_priority": 0,"headers": null,"hosts": null,"paths": ["/yo"  ],"service": {"id": "9c2a9507-83fa-487a-9559-4eb23b58dfc9"  },"id": "c4281174-c1a5-4420-993e-3c695f85a3f2","preserve_host": false,"sources": null,"https_redirect_status_code": 426,"destinations": null,"snis": null}

Then i have try https://kong-dev.sample.app/yo API and got below error.

{"message": "Please use HTTPS protocol","request_id": "f5a1af432973d870f3a5436c040ce52d"}

First i have tried with changing the docker file and nothing worked. And then i have created certificates using

sudo certbot certonly --manual --preferred-challenges=dns -d domain

and uploaded them into certificates on Kong Gateway and add to service. But still error not fixed.