Get picked image on Android with React Native Fetch API

In my searching for a solution to this problem, I ran across this post. The explanation is pretty thorough. Here's the TL;DR . . .

As of RN 0.57, the polyfill they use for fetch doesn't default the xhr.responseType to blob anymore. The React Native for Android BlobModule checks the response type to determine if it can handle the URL when it's not an http or https request. Since the responseType is never 'blob', this module never handles the request, and a type error is thrown . . . on android . . . for file requests . . . through the whatwg-fetch.js polyfill . . . for RN 0.57+.

Based on the aforementioned post on the expo issue, I added this as a (hopefully) temporary solution.

requestBlob = (uri) => {
  return new Promise((resolve, reject) => {
    let xhr = new XMLHttpRequest();
    xhr.onload = () => resolve(xhr.response);
    xhr.onerror = () => reject(new TypeError('Network request failed'));
    xhr.responseType = 'blob';

    xhr.open('GET', uri, true);
    xhr.send(null);
  });
}

I'm saving my image like this:

  let body, storedImage;
  try {
    body = await requestBlob(localImageUri).catch(error => errors.push(error));
    storedImage = await Storage.put(path, body).catch(error => errors.push(error));
  } finally {
    body.close();
  }