TypeError: value is not iterable while accessing registrations in @azure/notification-hubs NotificationHubsClient

[EmilioP94]

• Package Name: @azure/notification-hubs
• Package Version: 2.0.0
• Operating system: MacOS 15.3.1
• nodejs
  • version: 22.3
• browser
  • name/version:
• typescript
  • version: 5.8.3
• Is the bug related to documentation in
  • README.md
  • source code documentation
  • SDK API docs on https://learn.microsoft.com

Describe the bug
When trying to iterate over pages returned by registrations.byPage() from the NotificationHubsClient class, node is throwing the following error:

ERROR [ExceptionsHandler] value is not iterable - {
  stack: [
    'TypeError: value is not iterable\n' +
      '    at getHeadersOrUndefined (/Users/emile/Documents/Repos/ocean-cloud-ts/node_modules/@azure/notification-hubs/src/serializers/registrationSerializer.ts:509:35)\n' +
      '    at Object.createAppleTemplateRegistrationDescription (/Users/emile/Documents/Repos/ocean-cloud-ts/node_modules/@azure/notification-hubs/src/serializers/registrationSerializer.ts:284:20)\n' +
      '    at Object.parseRegistrationFeed (/Users/emile/Documents/Repos/ocean-cloud-ts/node_modules/@azure/notification-hubs/src/serializers/registrationSerializer.ts:224:27)\n' +
      '    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n' +
      '    at _listRegistrationsByTag (/Users/emile/Documents/Repos/ocean-cloud-ts/node_modules/@azure/notification-hubs/src/api/listRegistrationsByTag.ts:97:25)'
  ],
  error: {}
}

To Reproduce
Steps to reproduce the behavior:
Use the proposed code in this documentation: https://github.com/Azure/azure-sdk-for-js/blob/main/sdk/notificationhubs/notification-hubs/README.md#registrations-api:

import { NotificationHubsClient } from "@azure/notification-hubs";

const client = new NotificationHubsClient("<connection string>", "<hub name>");

const registrations = client.listRegistrationsByTag("likes_hockey");

let page = 0;
for await (const pages of registrations.byPage()) {
  console.log(`Page number ${page++}`);
  for (const item of pages) {
    console.log(JSON.stringify(item, null, 2));
  }
}

Expected behavior
It should properly iterate on registration pages and not crash with a TypeError

Screenshots
N/A

Additional context
N/A

[mpodwysocki]

@EmilioP94 can you give me some more information, such as what types of registrations you have in your hub? Are they Apple Template registrations?

[EmilioP94]

Hey @mpodwysocki, thanks for your response. Is there a way I can list those in any way other than using the various listRegistrations methods? The ones I have should be mostly FcmV1 registrations with the odd Apple one.

[jeremymeng]

PR #36114