#text "https ok" #text " and " #text "mailto ok" #text "."

#text "relative dropped and js dropped and " #text "upper kept" #text "."

#text "https://deepseek.com" #text " and bare autolink " #text "https://autolink.example.com" #text " literal."

#text "[spaces encoded](" #text "https://example.com/a" #text " b)"