Escaped characters that cause an external request in-between forward slashes

<div style="background:url('/\0x09/fuzz.shazzer.co.uk/q16dhei82jb?9')">

<div style="background:url('/\
/fuzz.shazzer.co.uk/qi5iw6wtoye?10')">

<div style="background:url('/\0x0C/fuzz.shazzer.co.uk/rh8xytk815g?12')">

<div style="background:url('/\
/fuzz.shazzer.co.uk/ixlmws6ahkp?13')">

<div style="background:url('/\//fuzz.shazzer.co.uk/wty681wv64?47')">

<div style="background:url('/\9/fuzz.shazzer.co.uk/i2e6aaxi8e?57')">

<div style="background:url('/\A/fuzz.shazzer.co.uk/pykquz4mtdg?65')">

<div style="background:url('/\D/fuzz.shazzer.co.uk/50l1zjlkhpg?68')">

<div style="background:url('/\\/fuzz.shazzer.co.uk/8e9iycmqkn?92')">

<div style="background:url('/\a/fuzz.shazzer.co.uk/vz8ie39xor?97')">

<div style="background:url('/\d/fuzz.shazzer.co.uk/50fpqudjg88?100')">

<div style="background:url('/\0x09/fuzz.shazzer.co.uk/nggiuku2t8?9')">

<div style="background:url('/\
/fuzz.shazzer.co.uk/00sduu8ttfee?10')">

<div style="background:url('/\0x0C/fuzz.shazzer.co.uk/afufyw781i8?12')">

<div style="background:url('/\
/fuzz.shazzer.co.uk/99ywkyexge?13')">

<div style="background:url('/\//fuzz.shazzer.co.uk/labr306xp6m?47')">

<div style="background:url('/\9/fuzz.shazzer.co.uk/v9db6wolftd?57')">

<div style="background:url('/\A/fuzz.shazzer.co.uk/wou9y4lxrb?65')">

<div style="background:url('/\D/fuzz.shazzer.co.uk/nnhzg5wrll?68')">

<div style="background:url('/\a/fuzz.shazzer.co.uk/w7r5w5tzt8?97')">