text: /**
   * Implement Gatsby's Browser APIs in this file.
   *
   * See: https://www.gatsbyjs.org/docs/browser-apis/
   */
  
  // You can delete this file if you're not using it
  // ES5 way
  // exports.onClientEntry = () => {
  // ES6 way
  export const onClientEntry = () => {
    // IntersectionObserver polyfill for gatsby-background-image (Safari, IE)
    if (typeof window.IntersectionObserver === `undefined`) {
      // import(`intersection-observer`)
      console.log(`# IntersectionObserver is polyfilled!`)
    }
  }
  