I would like to understand this. If a customer asks we do do image recompression to save space, and strip metadata (this is one of our services) but would like to know what this is about.
My experience in web-dev is that browser support for color profiles is dodgy at best. Much like alpha in PNGs. It's usually wiser to not rely on occasionally-supported features.
PNG alpha in particular was a nightmare for me. After that I knew to look out for the pain caused by occasionally-supported features in images.
PNG alpha transparency was a problem with the decade old IE6. And even then IE6 worked fine with PNG8 images that had alpha transparency. IE7 and IE8 required a 1 line style attribute to work 100% with PNG + alpha, and IE9 did away with that need altogether.
