Issue uploading image to Spaces with node. Image opens as a gray square.

I’m trying to upload a jpeg file from within node. I’m using a library to generate a jpeg image, if that changes anything. I’m able to download the generated image from my app and open it just fine, but when I upload it to Spaces, it opens as a little gray square.

I’m using Upload from ‘@aws-sdk/lib-storage’. I’m setting my params like this:

const params = {
        Bucket: 'somename',
        Key: `user_thumbnails/${id}.jpeg`,
        Body: image,
        ACL: 'public-read',
        ContentType: 'image/jpeg',
      };

I’m uploading it like this:

  const parallelUploads3 = new Upload({
      client: s3Client,
      params,
    });

    parallelUploads3.on('httpUploadProgress', (progress) => {
      console.log('upload progress', progress);
    });

    await parallelUploads3.done();

The upload is completing, but like I said, I’m unable to view the image.

Some added information if you’re curious: I’m using dom-to-image to create the image. If I use file-saver to download the image directly, it works just fine, so I don’t think there is an issue with the image itself.