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ActiveRecord::RecordNotFound

app/controllers/posts_controller.rb:112 

Couldn't find Category with 'id'="_next"

Backtrace

app/controllers/posts_controller.rb:112:in 'PostsController#set_post'
lib/middleware/malicious_path_blocker.rb:45:in 'Middleware::MaliciousPathBlocker#call'

Request

Name PostsController#show
Method GET
URL https://rubycommunity.org/_next/image?q=75&url=http%3A%2F%2Fmetadata.google.internal%2FcomputeMetadata%2Fv1%2Finstance%2F%3Frecursive%3Dtrue&w=1200
Browser ChromeChrome 144

Parameters

{
  "q": "75",
  "w": "1200",
  "id": "image",
  "url": "http://metadata.google.internal/computeMetadata/v1/instance/?recursive=true",
  "action": "show",
  "controller": "posts",
  "category_id": "_next"
}

Headers

Host rubycommunity.org
Accept text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8
Referer https://rubycommunity.org
Sec-Ch-Ua "Not_A Brand";v="8", "Chromium";v="144", "Google Chrome";v="144"
User-Agent Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36
X-Request-Id c7aeaee2-d2f0-4e58-9f7b-e4275d24fddc
Cache-Control max-age=0
Sec-Fetch-Dest document
Sec-Fetch-Mode navigate
Sec-Fetch-Site none
Sec-Fetch-User ?1
X-Kamal-Target 53d4cf1bf76f:80
Accept-Encoding gzip
Accept-Language zh-CN,zh;q=0.9
X-Forwarded-For 38.29.140.89, 172.18.0.3
X-Request-Start t=1781284674318
X-Sendfile-Type X-Sendfile
Sec-Ch-Ua-Mobile ?0
X-Forwarded-Host rubycommunity.org
X-Forwarded-Port 443
X-Forwarded-Proto https
Sec-Ch-Ua-Platform "Windows"
Upgrade-Insecure-Requests 1

Context

controller 
#<PostsController:0x00007e01d3d8fc90>

Environment

os Linux 6.8.0-106-generic
cwd /rails
pid 24
host whyruby.info-1a9c2d0bc983
ruby ruby 4.0.1 (2026-01-13 revision e04267a14b) +YJIT +PRISM [x86_64-linux]
rails 8.2.0.alpha
revision 52a23b1a3a2dc0c2ebc3e12cb7a33d0698be4084

Server

Load CPU RAM Swap Disk
whyruby.info-1a9c2d0bc983 Load avg 16% CPU 15% RAM 97% Swap 100% Disk 62%

Deployments 1

52a23b1a3a2dc0c2ebc3e12cb7a33d0698be4084 15 Apr 07:58