aws/aws-sdk-php — pull request #256 by mtdowling (2014-03-12 19:23:59+00:00)
Title: Moving X-Amz-* headers to the query string with pre-signed URLs

- Each x-amz-* header can be moved to the query string after creating a
pre-signed URL. This ensures that pre-signed URLs can be created for
requests that utilize custom HTTP headers.
- Closes #250.