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Transform any Meteor App into a PWA

Jan Küster on February 02, 2020

Okay, so you created and tested your Meteor app successfully. Now you want your users enjoy the benefits of a pwa (progressive web app), too. Not t...

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Lizzy Mendivil • Feb 28 '20

Hi, I just followed your guide but it did not work. Maybe my chrome does not support service worker? I am working with this: Version 80.0.3987.122 (Official Build) (64-bit) Could help me please? :(

Jan Küster • Feb 28 '20

Hi Lizzy, what does the chrome console say?

Lizzy Mendivil • Feb 28 '20

I added this:
if ("serviceWorker" in navigator) {
in serviceWorker.js file
So it never enters into the conditional

Jan Küster • Feb 28 '20

Please try the code as from the tutorial:

// serviceWorker.js
import { Meteor } from 'meteor/meteor'

Meteor.startup(() => {
  navigator.serviceWorker
    .register('/sw.js')
    .then(() => console.info('service worker registered'))
    .catch(error => { 
      console.log('ServiceWorker registration failed: ', error)
    })
})

does it throw an Error? If so, could you please show me the error stack?

Lizzy Mendivil • Feb 28 '20

serviceWorker.js:5 Uncaught TypeError: Cannot read property 'register' of undefined
    at serviceWorker.js:5
    at maybeReady (meteor.js?hash=857dafb4b9dff17e29ed8498a22ea5b1a3d6b41d:938)
    at HTMLDocument.loadingCompleted (meteor.js?hash=857dafb4b9dff17e29ed8498a22ea5b1a3d6b41d:950)

Jan Küster • Feb 28 '20

Hm there seems to be no service worker in navigator. Is this a private session or do you block all cookies? I think there were some sw issues at least in Firefox that were related to these.

Lizzy Mendivil • Feb 28 '20

well, i am using a virtual machine with ubuntu 16.04 but i connect through ssh and a network location and open the application in my window (physical machine)

Lizzy Mendivil • Feb 28 '20

So, my url is 172.21.19.91:3000/
could it be the problem?

Lizzy Mendivil • Feb 28 '20

JIC, I helped me
stackoverflow.com/questions/522992...

Now it is working fine! Thanks!

Boris Krstić • Feb 3 '20

I enjoyed working with Meteor back in 2016. I think this framework was just a bit ahead of its time 😏

Jan Küster • Feb 3 '20

Hey Boris, yes their lead developer is constantly on the edge of Js.
Btw, you should check out the roadmap: github.com/meteor/meteor/blob/mast...

Also note that Meteor has been aqquired by Tiny: blog.meteor.com/a-new-chapter-for-...

Bob • Jul 2 '20

This guide worked really great for me! 🎉 I now have a desktop & mobile installable app, amazing!! Thanks Jan!

chaawlaapooja • Feb 5 '20 • Edited

Hello Jan,
Thanks for the article. I followed the steps mentioned above and my app is now PWA compliant. Can you help me on how to implement features like push notifications to make it behave like native app?

Jan Küster • Feb 5 '20 • Edited

I currently did not implement push notifications in my pwas but I am planning a follow up article on specific pwa features that bases on this article. In the meantime you may check out the package registry atmospherejs.com for packages that provide push notifications.

chaawlaapooja • Feb 5 '20

Thanks!

Harry Adel • Feb 2 '20

Great icons :D

Jan Küster • Feb 2 '20 • Edited

In the past I used to spend time and engery on design things but I realized that it won't be better with more time spent. Instead I saved the effort for writing. ;-)

Harry Adel • Feb 2 '20

yeah, great and informative article nonetheless

Ram • Apr 23 '20

Hi, i added force-ssl, still i am getting "Does not redirect HTTP traffic to HTTPS" error when i run lighthouse. Could you help me please ???

Jan Küster • Apr 23 '20

I assume you are on localhost? Then this is expected behavior. It will work on your deployment, assuming your certificate is correctly installed.

Ram • Apr 25 '20

Awesome, it worked fine on Deploying. Thank you Jan.
BTW, can you write a article for prompting user to install app on iOS.

Pontus Kindblad • Oct 7 '20

I got the error: start_url does not respond with a 200 when offlineThe start_url did respond, but not via a service worker.