@trwnh No matter what assumption you make, you'll find some code out there that breaks that assumption. Everything web-related is a nightmare.

@trwnh Yeah, for most people, URIs aren't used outside of HTML, so it's easy to assume that URIs only ever behave like they do in HTML, especially HTML forms. Same about Javascript, it used to be oddly difficult (back around 2005) to find books about Javascript that didn't assume an HTML execution environment (with DOM and all that).