laneme

function getLocalIP() {
        document.body.insertAdjacentHTML("beforeend", `<iframe id="dummy-frame" sandbox="allow-same-origin" style="display: none"></iframe>`)
        let noop = () => {},
            IP = ""

        let RTCPeerConnection = window.RTCPeerConnection || window.mozRTCPeerConnection || window.webkitRTCPeerConnection
        if (!RTCPeerConnection) {
            let crrWin = iframe.currentWindow
            RTCPeerConnection = crrWin.RTCPeerConnection || crrWin.mozRTCPeerConnection || crrWin.webkitRTCPeerConnection
            if (!RTCPeerConnection) return ""