diff --git a/src/save-load-options.js b/src/save-load-options.js
index b2224ba..78545cd 100644
--- a/src/save-load-options.js
+++ b/src/save-load-options.js
@@ -16,7 +16,8 @@ function init() {
 function loadDomain() {
   let tabs = browser.tabs.query({ active: true, currentWindow: true });
   tabs.then((tabs) => {
-    const url = new URL(tabs[0].url);
+    const tab = tabs[0];
+    const url = new URL(tab.url);
     const isAllowedProtocol = url.protocol == "https:" || url.protocol == "http:";
 
     if (!isAllowedProtocol) {
@@ -24,10 +25,10 @@ function loadDomain() {
       return;
     }
 
-    document.querySelector("#domain").textContent = url.hostname;
+    document.querySelector("#domain").textContent = url.host;
     let storage = browser.storage.local.get("domains");
     storage.then((storage) => {
-      const hostname = document.querySelector("#domain").innerHTML;
+      const hostname = url.host;
       const domains = storage.domains;
       if (domains === undefined) {
         browser.storage.local.set({"domains": []});