Don't default to document title if no notification title present

src/OneSignal.ts

@@ -306,7 +306,6 @@ export default class OneSignal {
         MainHelper.checkAndTriggerNotificationPermissionChanged();
       });
 
-      await InitHelper.initSaveState(document.title);
       await InitHelper.saveInitOptions();
       if (SdkEnvironment.getWindowEnv() === WindowEnvironmentKind.CustomIframe)
         await Event.trigger(OneSignal.EVENTS.SDK_INITIALIZED);

src/helpers/InitHelper.ts

@@ -265,7 +265,7 @@ export default class InitHelper {
         if (registration && registration.active) {
           await OneSignal.context.serviceWorkerManager.establishServiceWorkerChannel();
         }
-      } catch (e) { 
+      } catch (e) {
         Log.error(e);
       }
     }
@@ -475,7 +475,7 @@ export default class InitHelper {
   public static async initSaveState(overridingPageTitle: string) {
     const appId = await MainHelper.getAppId();
     await Database.put('Ids', { type: 'appId', id: appId });
-    const initialPageTitle = overridingPageTitle || document.title || 'Notification';
+    const initialPageTitle = overridingPageTitle || '';
     await Database.put('Options', { key: 'pageTitle', value: initialPageTitle });
     Log.info(`OneSignal: Set pageTitle to be '${initialPageTitle}'.`);
     const config: AppConfig = OneSignal.config;

src/service-worker/ServiceWorker.ts

@@ -102,7 +102,6 @@ export class ServiceWorker {
       event.waitUntil(ServiceWorker.onPushSubscriptionChange(event))
     });
 
-
     self.addEventListener('message', (event: ExtendableMessageEvent) => {
       const data: WorkerMessengerMessage = event.data;
       if (!data || !data.command) {
@@ -213,7 +212,7 @@ export class ServiceWorker {
 
         const timestamp = payload.timestamp;
         if (self.clientsStatus.timestamp !== timestamp) { return; }
-        
+
         self.clientsStatus.receivedResponsesCount++;
         if (payload.focused) {
           self.clientsStatus.hasAnyActiveSessions = true;
@@ -357,18 +356,18 @@ export class ServiceWorker {
     if (!hasRequiredParams) {
       return null;
     }
- 
+
     // JSON.stringify() does not include undefined values
     // Our response will not contain those fields here which have undefined values
     const postData = {
-      player_id : deviceId, 
+      player_id : deviceId,
       app_id : appId
     };
-    
+
     Log.debug(`Called %csendConfirmedDelivery(${
       JSON.stringify(notification, null, 4)
     })`, Utils.getConsoleStyle('code'));
-    
+
     return await OneSignalApiBase.put(`notifications/${notification.id}/report_received`, postData);
   }
 
@@ -432,7 +431,7 @@ export class ServiceWorker {
      * if https -> getActiveClients -> check for the first focused
      * unfortunately, not enough for safari, it always returns false for focused state of a client
      * have to workaround it with messaging to the client.
-     * 
+     *
      * if http, also have to workaround with messaging:
      *   SW to iframe -> iframe to page -> page to iframe -> iframe to SW
      */
@@ -602,7 +601,8 @@ export class ServiceWorker {
     Log.debug(`Called %cdisplayNotification(${JSON.stringify(notification, null, 4)}):`, Utils.getConsoleStyle('code'), notification);
 
     // Use the default title if one isn't provided
-    const defaultTitle = await ServiceWorker._getTitle();
+    const defaultTitle = await Database.get("Options", "defaultTitle") || "";
+
     // Use the default icon if one isn't provided
     const defaultIcon = await Database.get('Options', 'defaultIcon');
     // Get option of whether we should leave notification displaying indefinitely
@@ -1093,26 +1093,6 @@ export class ServiceWorker {
     }
   }
 
-  /**
-   * Returns a promise that is fulfilled with either the default title from the database (first priority) or the page title from the database (alternate result).
-   */
-  static _getTitle() {
-    return new Promise(resolve => {
-      Promise.all([Database.get('Options', 'defaultTitle'), Database.get('Options', 'pageTitle')])
-        .then(([defaultTitle, pageTitle]) => {
-          if (defaultTitle !== null) {
-            resolve(defaultTitle);
-          }
-          else if (pageTitle != null) {
-            resolve(pageTitle);
-          }
-          else {
-            resolve('');
-          }
-        });
-    });
-  }
-
   /**
    * Returns an array of raw notification objects, read from the event.data.payload property
    * @param event