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Handling Service Worker updates in your Vue PWA

Drew Bragg on May 14, 2020

Table Of Contents Updating the Service Worker registration Making an update mixin Updating our UI Skipping Service Working waiting Upda...

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Drew Bragg • May 20 '20 • Edited

I just found out that this article is being included in the Vue.js Developer Newsletter which is pretty exciting!

If you found this article via the newsletter let me know.

Pim Hooghiemstra • Jun 23 '20

I am not totally sure, but I think it would be fair to add a reference to this article on medium medium.com/@dougallrich/give-users... where the author explains this whole concept. I coded my version of a PWA with updated SW last year based on this article and I found that your code samples are more or less identical to what is described in this article.

Drew Bragg • Jun 23 '20

Wow, that is super similar in code examples. I read a bunch of different articles and docs while I was working on my solution. Somehow, I didn't see this one.

Thanks for this link and the idea. Maybe I can add a list of different articles that take a similar approach to this problem.

frynt • Mar 10 '22 • Edited

YOU saved my life.

To automatically show the update banner, add this in service worker :

dev-to-uploads.s3.amazonaws.com/up...

fotiecodes • May 6 '23 • Edited

Hi man, thanks again for this amazing article. i just stumbled into an issue, i'm not sure how to explain this though. but when i deploy a version of my code to production it still uses the reference to the old fines generated by the build. for example. The newly generate build files in my index.html are /js/chunk-vendors.3c199704.js however my webapp tries to reference an old generate file which isn't existing.

Note that when i clear the catch everything starts working properly. I don't really know what is going on at this point. Please anyone knows how i can fix this?

fotiecodes • May 8 '23

Anyone has any idea on how to fix this issue? again it was working pretty well but started bugging in production lately!

fotiecodes • Feb 4 '22 • Edited

Thanks for this awesome article man... really helped!

fsboehme • Jun 10 '20

Thank you, Lord! You just saved my sanity – or what's left of it after struggling with this for 2 days! Amazing! Thank you so much for this! 🙌 🙌 🙌

tiny fix: there seems to be a comma missing between updateAvailable and refreshApp in methods.

Drew Bragg • Jun 11 '20

Great! The whole reason I wrote this up was to help someone dealing with the same issue. I'm super happy I could help.

Thanks for the heads up on the comma 🤦‍♂️

Milind Singh • Mar 16 '21

In my blog this updated(registration) method is called on every page reload and it show in console that 'New content is available; please refresh.'

Is this usual for PWA or I missed something ?

updated(registration) {
  console.log('New content is available; please refresh.')
  document.dispatchEvent(
    new CustomEvent('swUpdated', { detail: registration })
  )
}

dev.adapttive.com

Drew Bragg • Mar 22 '21

Hey Milind, that doesn't sound right to me. Did you follow the above example exactly?

Milind Singh • Mar 22 '21

Yes, I found the issue.

I had add the onesignal sdk for notifications, which has a service worker causing conflit with default website service worker. 🙂

dharmendradavid • Jul 10 '20

Thank you for this wonderful article. This is working fine if we refresh the page and showing an update prompt. But this not working without a refreshing page. Especially in the case of SPA. Please help me to show update prompt without refresh page

Aaron Lozier • Aug 16 '21

I had the same question. Turns out you can create an interval to poll for updates in registerServiceWorker.js:

 registered(registration) {
      console.log(
        'Service worker has been registered and now polling for updates.'
      )
      setInterval(() => {
        registration.update()
      }, 5000) // every 5 seconds
    }

frynt • Mar 10 '22

This works perfectly ! thanks !

positivethinking639 • Aug 24 '20

Hi. I want to ask. I had try your code and it works. I don't want to show the snackbar message. So I deleted this code : <v-snackbar bottom right :value="updateExists" :timeout="0" color="primary"> An update is available <v-btn text @click="refreshApp"> Update </v-btn> </v-snackbar>. It worked and there were no problems. Changes are automatically updated without clicking the update button. How do you think?

positivethinking639 • Aug 24 '20 • Edited

I try another option like this : methods: { updateAvailable (event) { this.registration = event.detail this.updateExists = true this.refreshApp() }. So if detect new version, it immediately called refreshApp method. So user don't need to click the update button

RDJ • Sep 30 '21

Snackbar with UPDATE button never goes away on Chrome/Firefox even after reloading, works as expected on Safari. Any help is appreciated @drbragg

Drew Bragg • Oct 1 '21

Could be a change in a newer of Vue or Vuetify. Or heck, could be a change in how register-service-wroker works (judging by some of the other comments). It's been a while since I worked with this. If it helps these were my dependency versions at the time:

"dependencies": {
  "register-service-worker": "^1.7.1",
  "vue": "^2.6.11",
  "vuetify": "^2.2.31"
}

RDJ • Oct 30 '21

@drbragg figured out, it was problem with using firebase serviceWorker being loaded at the same time. Thanks for this article, highly appreciate that

Drew Bragg • Oct 30 '21

Awesome! Glad you were able to figure it out!

RDJ • Oct 1 '21

@drbragg thanks for responding. I’ll check it out

Emmanuele D • Nov 11 '22

Hi @rdj

I'm trying to use this system and at the same time i have FCM on my project.
How did you solve that situation?

thankyou

Temi • Dec 17 '21

Awesome bro. Thank you.

Sujith D • Mar 16 '21

This saved my day!...It works flawless. Great! sollution.

HDenizD • Dec 2 '20

awesome bro, like a charm <3 . thank you

disjfa • Dec 10 '20

Was searching for this exact code. Awesome! Thanks a bunch of headache!

Ravi Hasija • Dec 27 '20

Thank you! This was very helpful!

Abia Emmanuel • Oct 13 '20

Thanks a million.

Drew Bragg • Jun 21 '20

Thank you for the kind words! I hope it helped you.

Alejandro Narmona • Sep 26 '21

Excelent! Thanks!!

roronoa • Sep 25 '22

I don't get where exactly to add the self.addEventListener code

Nathan DJ • Sep 17 '21

Anyone thought of doing a composition api variation?

Great article

Drew Bragg • Oct 1 '21

Not doing much with Vue any more unfortunately. Maybe someday