🚧 Make it work with async work

src/scripts/background.js

@@ -7,25 +7,19 @@ ext.runtime.onMessage.addListener(
       var data = JSON.parse(request.data);
       var url;
       var token;
-      storage.get('url', function(resp) {
+      storage.get(['url', 'token'], function(resp) {
         url = resp.url;
-        storage.get('token', function(resp) {
         token = resp.token;
-          console.log("Extension Type: ", "/* @echo extension */");
-          console.log("PERFORM AJAX", request.data);
         var destination = url+"?v=1&u="+encodeURIComponent(data.url)+"&t="+encodeURIComponent(data.title)+"&m="+encodeURIComponent(token);
 
         console.log("Destination: ", destination);
-          fetch(destination)
+        fetch(destination).then(function(response) {
-          .then(function(response) {
           console.log(response);
-          });
-          
            sendResponse({ action: "saved" });
         });
       });
 
-      
+      return true; // https://stackoverflow.com/a/20077854
     }
   }
 );

src/scripts/popup.js

@@ -21,11 +21,11 @@ var template = (data) => {
     <button data-bookmark='${json}' id="save-btn" class="btn btn-primary">Save</button>
   </div>
   `);
-}
+};
 var renderMessage = (message) => {
   var displayContainer = document.getElementById("display-container");
   displayContainer.innerHTML = `<p class='message'>${message}</p>`;
-}
+};
 
 var renderBookmark = (data) => {
   var displayContainer = document.getElementById("display-container")
@@ -52,7 +52,7 @@ popup.addEventListener("click", function(e) {
           } else {
               renderMessage("Sorry, there was an error while saving your bookmark.");
           }
-    })
+      });
   }
 });
 
@@ -60,4 +60,4 @@ var optionsLink = document.querySelector(".js-options");
 optionsLink.addEventListener("click", function(e) {
   e.preventDefault();
   ext.tabs.create({'url': ext.extension.getURL('options.html')});
-})
+});