JS prevent the PC side from copying correct links

        if (!/Mobi|Android|iPhone/i.test(navigator.userAgent)) {
            var json = {
                time: new Date().getTime()
            };
            var href = location.href;
            //  To be homologous 
            window.history.pushState(json, "", "http://oa.xxxxx.com/ Prohibit copying links ");
            window.onbeforeunload = function(e) {
                window.history.pushState(json, "", href)
            }
        }