Error with rate-limiting plugin after 3.8.0.0 upgrade

Is there an existing issue for this?

[X] I have searched the existing issues

Kong version (`$ kong version`)

Kong 3.8.0.0

Current Behavior

When the rate-limiting plugin is in use for a service, we are seeing the following error. It also appears that Kong is returning a HTTP 500s because of this. We do see requests succeed (HTTP 200s) until the rate-limiting plugin throttles traffic and that's when we see HTTP 500s.

"2024/09/27 02:32:25 [error] 2567#0: *63070 [kong] init.lua:427 [rate-limiting] ./rate-limiting/handler.lua:212: arg #3 `value` for function `store_response_header` must be a string or a number, got nil, client: x.x.x.x, server: kong, request: \"POST /som/path HTTP/1.1\", host: \"some.host.com\", request_id: \"asdfasdfdsf\""

Expected Behavior

When using the rate-limiting plugin I expect no errors in the logs and when the rate-limiting plugin is in affect Kong should respond with HTTP 429 instead.

Steps To Reproduce

Using our preprod environment.

Using this configuration


_format_version: "3.0"
_info:
select_tags:
- my-app
_plugin_configs:
jwt-config:
claims_to_verify:
  - exp
key_claim_name: sub

rate-limiting-my-app-config:
second: null
minute: 60
hour: null
day: null
month: null
year: null
fault_tolerant: true
header_name: null
hide_client_headers: true
limit_by: ip
policy: local

connect_timeout: 60000 read_timeout: 60000 write_timeout: 60000 retries: 5

name: my-app hosts:
- some.host.com methods:
- GET
- OPTIONS paths:
- ~/some/path preserve_host: false protocols:
- https regex_priority: 0 tags:
- my-app https_redirect_status_code: 426 plugins:
- name: rate-limiting _config: rate-limiting-my-app-config enabled: true protocols:
  - https tags:
  - my-app

Anything else?

We're running Kong on AWS ECS Fargate.

Kong / kong