October 2017
Intermediate to advanced
370 pages
8h 57m
English
Content preview from AMP: Building Accelerated Mobile Pages
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The service worker iframe installer
The iframe installer is a simple HTML page that will be loaded into an iframe by the amp-install-serviceworker component when the AMP page is loaded via the cache. It uses JavaScript to install the service worker (/ch11/amptopwa/sw-install.html):
<script type="text/javascript"> if("serviceWorker" in navigator) { navigator.serviceWorker.register('/sw.js').then(function(reg){ console.log('ServiceWorker scope: ', reg.scope); }).catch(function(err) { console.warn('ServiceWorker registration failed: ', err); }); };</script>
That's it! We use the same service worker file, but by using an iframe when needed, amp-install-serviceworker can install the service worker whether the user arrives via the cache or the ...
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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.