I can't imagine a business scenario where [degrade gracefully] would be a legitimate requirement.Not degrading gracefully, which rather than being a way to say you're going to support older versions or browsers without certain "advanced" or "specific" capabilities, is one way we ended up with bank, utility and government websites that only work in Internet Explorer. Most of those days are thankfully behind us, but that's mainly because IE doesn't have the market share it once did, and those browsers that do have the significant market share are now more compatible with each other. Often sites are more complicated than they need to be anyway, and if they weren't so complicated, they wouldn't need to degrade, gracefully or otherwise.