Just FYI, for xhr to S3 you can set up a proxy which fakes the CORS headers. You might have already been aware of that. Filepicker looks neat. I wish it had be

Just FYI, for xhr to S3 you can set up a proxy which fakes the CORS headers. You might have already been aware of that. Filepicker looks neat. I wish it had been around when we were building our service.