Share URL, decode the base64 and the result is badly encoded data that cannot be read

[j-d-carmichael]

From the example, in the repo this is the extraction:

 openwith.load(intent.items[0], function (data, item) {
  console.log( atob(data))
});

I cannot see how to extract the data... the above log just outputs a string of unreadable content.

The item after load looks like this:

base64: "/9j/4AAQSkZJRgABAQAAAQABAAD/4gIoSUNDX1BST0ZJTEUAAQ"
type: "application/octet-stream"
uri: "content://com.android.chrome.FileProvider/BlockedFile_319287714984242"

content://com.android.chrome.FileProvider/BlockedFile_319287714984242

I am completely new to android development so I can only assume that I have a wrong config? Should the URI be "BlockedFile"?

related: https://github.com/j3k0/cordova-plugin-openwith/issues/102