JavaScript Firebase: Service worker malfunctioning during navigation

I'm currently developing a website that relies on firebase messaging. To make this happen, a specialized service worker for firebase has been integrated into the site.

This website functions as a webchat platform where messages are synchronized and stored in the firebase database. The site utilizes angular-ui-router to retrieve message keys from the URL. Whenever a new message is received from a client, a notification is displayed. Clicking on this notification modifies the URL to display the related message. However, there's been an issue with the service worker when the website isn't in focus, resulting in an error message stating "unable to navigate".

The code snippet for the service worker looks like this:

(service worker code here)

The desired behavior for the website is outlined below:

When in focus:

  • Receive message
  • Show notification
  • Modify URL upon notification click

URL before notification click: https://example.com/#!/

URL after notification click: https://example.com/#!/-key

When not in focus:

  • Receive push notification
  • Adjust data for notification display
  • Show notification
  • Focus/open website upon notification click
  • Modify URL upon focus/open

URL when focused/opened: https://example.com/#!/-key

The notification display code works fine when the website is in focus, so I don't believe it's necessary to include that code here.

Any assistance on this matter would be greatly appreciated, as I've exhausted all possible solutions I could think of.

Answer №1

According to the guidelines outlined in the provided specification (referenced as 4.2.10, step 4), there is a possibility of rejection when utilizing WindowClient.navigate(). This rejection may occur if the active service worker assigned to the client differs from the service worker currently executing the code. Essentially, if the current service worker does not control the window, it cannot instruct it to navigate to a specific URL.

My suggestion would be to utilize

self.clients.matchAll({
  includeUncontrolled: false,
  type: 'window'
})

This will ensure that you only receive WindowClient instances that are indeed controlled by the present service worker.

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