Error creating blob

Getting error ''Error Value.hasOwnProperty is not a function" when i try to create a blob on Andriod.
Using Expo Image Picker and trying to create a blob and send to S3 .
Ive tried with bare React and its able to create. Is there limitations with Expo regarding this or is there a way around.

const response = await fetch(result.uri)
const blob = await response.blob()
Storage.put(filename, blob { contenType: ‘images/jpeg’})