gatsby-plugin-preconnect

Quickly add a <link rel="preconnect" crossorigin> tag for every specified domain.

Install

npm install --save gatsby-plugin-preconnect

What this plugin does

It simply adds a <link rel="preconnect" href="https://example.com" crossorigin> to the page (see the Resource Prioritization - Preconnect guide).

How to use

// In your gatsby-config.js
plugins: [
  {
    resolve: 'gatsby-plugin-preconnect',
    options: {
      domains: ['https://foo.com', 'https://bar.com'],
    },
  },
]

crossOrigin is set to true by default but it can be customized, below all the available options

plugins: [
  {
    resolve: 'gatsby-plugin-preconnect',
    options: {
      domains: [
        'https://foo.com',
        'https://bar.com',
        { domain: 'https://enablecors.com', crossOrigin: true },
        { domain: 'https://disablecors.com', crossOrigin: false },
        { domain: 'https://corswithanonymous.com', crossOrigin: 'anonymous' },
        { domain: 'https://corswithcreds.com', crossOrigin: 'use-credentials' },
      ],
    },
  },
]

All the available values for crossOrigin are listed below, every other value makes the plugin throw an error

| Value | Equivalent value | | ------------------- | --------------------- | | undefined | "anonymous" | | true | "anonymous" | | "anonymous" | "anonymous" | | "use-credentials" | "use-credentials" | | false | (attribute not added) |

Contributing

PR or issues are welcome 👋

Notes

• if you want to work on the plugin sources, remember that you need to npm run build on the root then, in every test project, you need to run npm run plugin:link to locally use it

Contributors

Thanks goes to these wonderful people (emoji key):

This project follows the all-contributors specification. Contributions of any kind welcome!