You can set custom headers as long as they are prefaced with x-amz-meta...Other than that, you're limited to just a handful of headers. See my reply to thamer for more info.

You can from the web interface too. You just have to right click to get to properties, then there is a tab for setting headers.

Sure, you can set custom headers as long as they are prefaced with x-amz-meta...Other than that, you're limited to just a handful of headers. This is a big deal for fonts because the Access-Control-Allow-Origin must be set appropriately to be able to use custom fonts from a different origin (i.e. host&port) and S3 will pretty much always be on a different origin than the rest of your website.

You can read more on the AWS forum post about the issue: https://forums.aws.amazon.com/thread.jspa?threadID=34281

Edit: For those interested the complete list of allowed headers is here: http://docs.amazonwebservices.com/AmazonS3/latest/API/index....