/**
 * 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

@@ -110,55 +110,591 @@
 */%0A%0A
-// You can delete this file if you're not using it
+export const onClientEntry = () =%3E %7B%0A  return new Promise((resolve, reject) =%3E %7B%0A    // Polyfill.io stuff%0A    window.__polyfillio__ = () =%3E %7B%0A      resolve()%0A    %7D%0A%0A    const features = %5B%5D%0A%0A    if (!(%22fetch%22 in window)) %7B%0A      features.push(%22fetch%22)%0A    %7D%0A%0A    if (features.length) %7B%0A      const s = document.createElement(%22script%22)%0A      s.src = %60https://cdn.polyfill.io/v3/polyfill.min.js?features=$%7Bfeatures.join(%0A        %22,%22%0A      )%7D&callback=__polyfillio__%60%0A      s.async = true%0A      s.onerror = reject%0A      document.head.appendChild(s)%0A    %7D else %7B%0A      resolve()%0A    %7D%0A  %7D)%0A%7D
 %0A

add polyfill for IE11 to fix website