Comment 5 for bug 930359

Looking at the code, I'm finding it hard to envision a sane and unified way of setting headers. I've done 0 development with ec2 development so I may be missing some subtle commonalities between the two. Just looking at the code though, the header setting in ec2.client and s3.client seem radically different. However, this is something I'd like to discuss more if after focussing first on s3.