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dataURItoBlob(dataURI) {
// code adapted from: http://stackoverflow.com/questions/33486352/cant-upload-image-to-aws-s3-from-ionic-camera
let binary = atob(dataURI.split(',')[1]);
let array = [];
for (let i = 0; i < binary.length; i++) {
array.push(binary.charCodeAt(i));
}
return new Blob([new Uint8Array(array)], {type: 'image/jpeg'});
};
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