July 2018
Intermediate to advanced
354 pages
8h 51m
English
Content preview from Progressive Web Application Development by Example
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Validating web manifest files
The web manifest is a simple JSON document, but it's easy to make typos or forget things. If your site is not properly registering the manifest file, you will need to troubleshoot the issue. Fortunately, there are a few resources to help you validate your file.
Google hosts a simple online validator (https://manifest-validator.appspot.com) where you can enter either a URL or just paste the manifest code into the page. It will parse your manifest and let you know if there is an issue:
The nodejs Web Manifest Validator (https://github.com/san650/web-app-manifest-validator) is a module you can include in your automated ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.