The pre-filled definition URL in swagger UI is incorrect.

[niranjan94]

Prerequisites

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

Fastify version

4.8.1

Plugin version

1.0.2

Node.js version

16.15.1

Operating system

macOS

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

12.6

Description

• The URL of the definition json pre-filled on the swagger UI is incorrect and has an extra static path component in it.
• Pre-filled: http://127.0.0.1:8080/docs/static/json. Expected: http://127.0.0.1:8080/docs/json

Steps to Reproduce

await fastify.register(require('@fastify/swagger'), {
    mode: 'dynamic',
    openapi: {
      info: {
        title: 'api.example.io',
        description: 'Example API',
        version: packageJson.version,
      },
      components: {
        securitySchemes: {
          apiKey: {
            description: 'Your API Key',
            type: 'apiKey',
            name: 'Authorization',
            in: 'header',
          },
        },
      },
    },
    hideUntagged: true,
  })

await fastify.register(require('@fastify/swagger-ui'), {
    routePrefix: '/docs',
    uiConfig: {
      deepLinking: true,
      filter: '',
    },
  })

And goto http://127.0.0.1:8080/docs

Expected Behavior

No response

[Uzlopak]

PR #12 should fix that.