TBH at this point it doesn't really matter what the URI specifications say. Somehow we're able to stuff our URLs into our browsers, web pages, package managers,

TBH at this point it doesn't really matter what the URI specifications say. Somehow we're able to stuff our URLs into our browsers, web pages, package managers, REST APIs, mail clients etc and manage to get it working. It's useful enough that everyone uses it, so I'd be a fool to get stuck on the "correctness" of their specs. CTE uses the double-quote as a delimiter, so as long as the contents are percent-escaped for double-quote and your language's URL parser says "cool", it's acceptable.