retainExif does not work when converting to webP ?

[raphodn]

Compressor version

1.2.1

Link to minimal reproduction

https://github.com/openfoodfacts/open-prices-frontend/blob/master/src/components/ProofInputRow.vue

Steps to reproduce

Uploading a JPEG image with the following settings

Compressor.setDefaults({
  checkOrientation: true,  // default
  retainExif: true,
  mimeType: 'image/webp',
})

What is expected?

A WebP image that retains EXIF

What is actually happening?

a WebP image without EXIF

System Info

No response

Any additional comments?

Input & Output images visible here: https://file.io/MjyrNNP2teRR

[fengyuanchen]

Exif info only available for JPEG images.