don't show non-message to user; fix API server setting; misc doc & task stuff

sw_scripts/additional-scripts.js

@@ -5,7 +5,7 @@ importScripts(
 );
 
 self.addEventListener("install", (event) => {
-  console.error(event);
+  console.error("Adding event listener for:", event);
   importScripts(
     "safari-notifications.js",
     "nacl.js",
@@ -23,16 +23,20 @@ self.addEventListener("push", function (event) {
           payload = JSON.parse(event.data.text());
         }
         const message = await self.getNotificationCount();
-        console.error(message);
-        const title = payload ? payload.title : "Custom Title";
-        const options = {
-          body: message,
-          icon: payload ? payload.icon : "icon.png",
-          badge: payload ? payload.badge : "badge.png",
-        };
-        await self.registration.showNotification(title, options);
+        if (message) {
+          console.log("Will notify user:", message);
+          const title = payload ? payload.title : "Custom Title";
+          const options = {
+            body: message,
+            icon: payload ? payload.icon : "icon.png",
+            badge: payload ? payload.badge : "badge.png",
+          };
+          await self.registration.showNotification(title, options);
+        } else {
+          console.log("No notification message, so will not tell the user.");
+        }
       } catch (error) {
-        console.error("Error in processing the push event:", error);
+        console.error("Error processing the push event:", error);
       }
     })(),
   );
@@ -51,7 +55,7 @@ self.addEventListener("activate", (event) => {
 });
 
 self.addEventListener("fetch", (event) => {
-  console.log(event.request);
+  console.log("Got fetch event", event.request);
 });
 
 self.addEventListener("error", (event) => {