He visto un sitio web proxy con un código similar a este, pero el código está ofuscado.

El sitio web del proxy cambia window.location a window._location

Solo 5/7 intentos funcionan a continuación... ¿Cómo logro los otros 2?

 var _location = { set function(url) { window.location = url + "?search=query"; }, get href() { return window.location.href; }, get protocol() { return window.location.protocol; }, get hostname() { return window.location.hostname; }, get pathname() { return window.location.pathname; }, set href(url) { window.location.href = url + "?search=query"; } } _location.assign = function(url) { window.location.assign(url + "?search=query"); }; _location.replace = function(url) { window.location.replace(url + "?search=query"); }; console.log(window._location.href); // Working console.log(_location.href); // Working window._location = 'https://stackoverflow.com'; // NOT Working window._location.href = 'https://stackoverflow.com'; // Working window._location.assign('https://stackoverflow.com'); // Working window._location.replace('https://stackoverflow.com'); // Working _location = 'https://stackoverflow.com';// NOT Working