Prerequisites

• I have written a descriptive issue title
• I have searched existing issues to ensure the bug has not already been reported

Fastify version

4.0.3

Plugin version

No response

Node.js version

18

Operating system

macOS

Operating system version (i.e. 20.04, 11.3, 10)

latest

Description

When the onRoute hook is registered after a GET handler, it is executed for the HEAD route only.

Steps to Reproduce

const fastify = require('fastify')
const app = fastify()

app.addHook('onRoute', function inspector(routeOptions) {
  console.log('before ' + routeOptions.method)
})

app.get('/', function (request, reply) { })

app.addHook('onRoute', function inspector(routeOptions) {
  console.log('after ' + routeOptions.method)
})

app.ready()

Prints:

before GET
before HEAD
after HEAD

Expected Behavior

I think the after hook should not be executed.

It should print:

before GET
before HEAD