use seconds instead of ms for claims payload

src/services/NotificationService.ts

@@ -54,17 +54,17 @@ export class NotificationService {
       "kid": keyId,
     };
 
-    const now = Date.now();
+    const nowMs = Date.now();
     const claimsPayload = {
       "iss": teamId,
-      "iat": now,
+      "iat": Math.ceil(nowMs / 1000),  // APNs requires number of seconds since Epoch
     };
 
     this.apnsToken = jwt.sign(claimsPayload, privateKey, {
       algorithm: "ES256",
       header: tokenHeader
     });
-    this._lastRefreshedTimeMs = now;
+    this._lastRefreshedTimeMs = nowMs;
   }
 
   private lastReloadedTimeForAPNsIsTooRecent() {
@@ -109,6 +109,7 @@ export class NotificationService {
       "apns-priority": "10",
       "apns-topic": bundleId,
     };
+    try {
       const response = await fetch(url, {
         method: "POST",
         headers,
@@ -128,6 +129,10 @@ export class NotificationService {
         return false;
       }
       return true;
+    } catch(e) {
+      console.error(e);
+      return false;
+    }
   }
 
   public static getAPNsFullUrlToUse(deviceId: string) {