Tests which entities are allowed before a protocol-relative URL
const div = document.createElement('div')div.innerHTML='<a href="$[data1]//example.com">';0x0D
if(div.querySelector('a').host === 'example.com') {0x0D
log('$[data1]');0x0D
}div.innerHTML='<a href="\//example.com">';0x0D
if(div.querySelector('a').host === 'example.com') {0x0D
alert('\');0x0D
}div.innerHTML='<a href="
//example.com">';0x0D
if(div.querySelector('a').host === 'example.com') {0x0D
alert('
');0x0D
}div.innerHTML='<a href="///example.com">';0x0D
if(div.querySelector('a').host === 'example.com') {0x0D
alert('/');0x0D
}div.innerHTML='<a href="	//example.com">';0x0D
if(div.querySelector('a').host === 'example.com') {0x0D
alert('	');0x0D
}