Safari 13.0.4: Blob.arrayBuffer is not a function

patch-arrayBuffer.js

(function () {
  File.prototype.arrayBuffer = File.prototype.arrayBuffer || myArrayBuffer;
  Blob.prototype.arrayBuffer = Blob.prototype.arrayBuffer || myArrayBuffer;

  function myArrayBuffer() {
    // this: File or Blob
    return new Promise((resolve) => {
      let fr = new FileReader();
      fr.onload = () => {
        resolve(fr.result);
      };
      fr.readAsArrayBuffer(this);
    })
  }
})();

// This is a simple trick to implement Blob.arrayBuffer (https://developer.mozilla.org/en-US/docs/Web/API/Blob/arrayBuffer) using FileReader

Oh thank you for advice

Thanks for this!

This is awesome! You saved me!

Amazing! For some reason Babel doesn't seem to be able to generate this right now. Those guys should add this polyfill for Safari.

clutch

Thanks !!!!!! I use it in my unit tests with jest !

Thanks a lot!!!! It works fine!!!!