I\'m trying to use Dropzone.js to upload directly to Google Cloud Storage using a Signed URL. I\'ve managed to override the upload URL for each file added to Dropzone. Chrom
GCS has two APIs. The first, the XML API, uses domains like storage.googleapis.com. The second, the JSON API, uses domains like www.googleapis.com.
You're using the JSON API, which is fine, but unfortunately it doesn't support signed URLs. Craft an upload URL using the XML API's format: https://cloud.google.com/storage/docs/xml-api/put-object-upload