'use strict'; const hostsInput = document.querySelector("#hosts"); const codeInput = document.querySelector("#code"); const defaultHosts = "*://*.org/*"; const defaultCode = "document.body.innerHTML = '

This page has been eaten

'"; hostsInput.value = defaultHosts; codeInput.value = defaultCode; function registerScript() { browser.runtime.sendMessage({ hosts: hostsInput.value.split(","), code: codeInput.value }); } document.querySelector("#register").addEventListener('click', registerScript);