Tests which characters are valid before a protocol relative URL in fetch().
fetch("$[chr]//fuzz.shazzer.co.uk/$[rand]?$[i]")fetch("0x00//fuzz.shazzer.co.uk/nf1bec04fhm?0")fetch("0x01//fuzz.shazzer.co.uk/530ahi6hluu?1")fetch("0x02//fuzz.shazzer.co.uk/v2pqj49v2am?2")fetch("0x03//fuzz.shazzer.co.uk/2qdmsc1og8d?3")fetch("0x04//fuzz.shazzer.co.uk/3hgby3tz0in?4")fetch("0x05//fuzz.shazzer.co.uk/kbia6r2znu?5")fetch("0x06//fuzz.shazzer.co.uk/32lw79vp6wb?6")fetch("0x07//fuzz.shazzer.co.uk/mqoqxd7k14p?7")fetch("0x08//fuzz.shazzer.co.uk/xwtgrbw0pp?8")fetch("0x09//fuzz.shazzer.co.uk/trhh4fnxdqn?9")fetch("0x0B//fuzz.shazzer.co.uk/5tvqlkofw4h?11")fetch("0x0C//fuzz.shazzer.co.uk/acv4kev4zoe?12")fetch("0x0E//fuzz.shazzer.co.uk/zdbs6hbf9un?14")fetch("0x0F//fuzz.shazzer.co.uk/n0kk5qv61f?15")fetch("0x10//fuzz.shazzer.co.uk/kg7dosxt4?16")fetch("0x11//fuzz.shazzer.co.uk/1z7rjn0mzy4?17")fetch("0x12//fuzz.shazzer.co.uk/t86jv81vqzr?18")fetch("0x13//fuzz.shazzer.co.uk/sxdxfn606mn?19")fetch("0x14//fuzz.shazzer.co.uk/t9fseljf5f?20")fetch("0x15//fuzz.shazzer.co.uk/9hqfe96xl?21")