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PWA || Mistakes While making pwa INSTALLABLE

The Mistakes that make your pwa not valid to install. Or service and manifest does not meet installability

Today,I'm writing the mistake that I created while making my pwas and grabbed some knowledge and now I am sharing that knowledge with you.

M1 : Icons purpose .

In webmanifest we have to declare the purpose of our icon in "icons":[{"purpose":"my purpose"}]
We write purpose maskable but it is not valid for Installiblity. You have to declare purpose to any .

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M2 : Broken path.

It's more important that you have to write correct path every time.
If you write any broken path it will not meet Installiblity.
Where it's important.

  1. While Adding caches(sw.js)
  2. While writing paths of icon , scope and start_url.(manifest)

M3 : Path have to smaller case

In my app
I was written
And my folder was also APP but it's important that start_url and scope in manifest have to match with the scope of registration of service worker (with case sensitivity).
I replaced APP with app and my app became installable.

source code

If you want to check pwa example.


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Top comments (2)

shubham_ingale profile image
ShGI • Edited

But in lighthouse pwa section
purpose:maskable and Installiblity needs purpose:any.
Installiblity and pwa optimization are different I think from my experience.

I know we can debug in application tab
But beginners can't spot exact mistakes in with application
Like case sensitivity and some more mistakes

shubham_ingale profile image

Lighthouse can't spot these small mistakes