document.getElementById('connectBtn').addEventListener('click', () => { let wsUrl = document.getElementById('wsUrl').value; if (!wsUrl) { wsUrl = 'ws://127.0.0.1:8881/?token=a' } const msg = { action: "connectWebsocket", url: wsUrl, }; chrome.runtime.sendMessage(msg) }) chrome.runtime.onMessage.addListener((msg, sender, sendResponse) => { document.getElementById("wsStatus").innerText = msg.status; });