In this article we give some tips for troubleshooting, in case the image of a web push notification is not displayed.
Useful information for debugging and errors related to web push notifications.
Building a demo page for testing web push notifications
This tutorial can be useful for development if you want to test web push notifications on your domain using Pushpad. You will see how to create a demo page where a user can subscribe to notifications and send a notification with custom options to himself.
List of HTTP status codes and errors returned by web push services
A list of all the official documentation provided by the push services about the HTTP status codes and errors that can be returned. When an application sends a notification to a browser push service, it should check the status code returned and take appropriate actions.
How to change the scope of a service worker
The scope of a service worker defines when it is active and usually depends on the path where it is located. However in this tutorial we’ll see some directives that allow to change the default scope of a service worker, regardless of its location.
“This site has been updated in the background”: what is this notification?
If you subscribe to the notifications of some websites, you may sometimes see a strange notification with this content: “This site has been updated in the background”. What does that mean? And if you are the website owner, how can you prevent that notification?
Chrome Push Notifications: This site has been updated in the background
What can you do if you receive that notifications? What does it mean? How can you fix it?
Web Push errors explained (with HTTP status codes)
When you send a web push notification to a browser push service, you may get an HTTP status code that represents an error.
Debugging web push notifications on a specific device
This article describes a simple and effective method for debugging web push notifications on a specific browser using Pushpad.
Web Push Error 410: the push subscription has expired or the user has unsubscribed
Subscribing users to web push notifications on your website is not enough: you also need to manage and renew their push subscriptions properly over time, otherwise you will lose subscribers.
Web push notifications not shown / not delivered to browser
Why some web push notifications are not delivered to the browser? Why some notifications are not displayed to the user?
A notification that is successfully delivered to the browser push service, may not reach the end user for various reasons: