Properly send unsubscribe

src/subscriptions.js

@@ -54,13 +54,13 @@ export default class Subscriptions {
     const subscriptions = this.getSubscriptionsFromStorage();
 
     if (this.isSubscribed()) {
-      const endpoint = subscriptions[this.hubId].endpoint;
-      this.hubChannel.unsubscribe(endpoint);
+      const subscription = await this.registration.pushManager.getSubscription();
+      this.hubChannel.unsubscribe(subscription);
 
       delete subscriptions[this.hubId];
 
       if (Object.keys(subscriptions).length === 0) {
-        this.registration.pushManager.unregister(endpoint);
+        subscription.unsubscribe();
       }
     } else {
       let subscription = await this.registration.pushManager.getSubscription();

src/utils/hub-channel.js

@@ -95,8 +95,8 @@ export default class HubChannel {
     this.channel.push("subscribe", { subscription });
   };
 
-  unsubscribe = endpoint => {
-    this.channel.push("unsubscribe", { endpoint });
+  unsubscribe = subscription => {
+    this.channel.push("unsubscribe", { subscription });
   };
 
   sendMessage = body => {