WHile uploading to S3 can we make the sign call with method 'POST' instead of 'GET"?

[ghost]

Trying to make a /sign call for S3 upload to be a 'POST' one.
But call does not change when method : 'POST' is sent in creation of S3Uploader.

uploader = EmberUploader.S3Uploader.create({ url: this.get('url'), method: 'POST' });

[ezekg]

You can change the S3 signing method with the signingMethod property.