Issues » 172

Page Visibility, the Virtual Viewport, Virtual Reality in Firefox, the Fetch API, and more.
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HTML 5 Weekly
Issue 172 — January 21, 2015
Smashing Magazine
Dudley Storey looks at the Page Visibility API which provides pages with the ability to detect when they are or aren’t currently being viewed (such as when their tab is active or not). It’s supported by most modern browsers.


HTML5 Rocks
The viewport meta tag lets developers define the ‘width’ of the viewport on mobile devices, but the ‘virtual viewport’, as introduced in Chrome M40, splits the idea into two, a layout viewport and a visual viewport.


MozVR
Virtual reality support has been added directly to Firefox in the latest nightly builds. An add-on to access the Oculus Rift can also be installed. If this area interests you, this Leap Motion and WebVR talk may be of interest.


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Sergey Gospodarets
The Fetch API specifies a new way to fetch resources dynamically as a simpler to use alternative to XMLHttpRequest. It’s now supported in Chrome Canary but can work in most browsers using this polyfill.


A List Apart
Font interpolation is a process used by type designers to generate new intermediary fonts (such as different weights) from a series of master fonts.


HTML5 Rocks
Chrome 41 (currently in beta) supports image-rendering: pixelated, a CSS property that scales up images or canvases in a different way that’s ideal for pixelated games, QR codes, etc.


W3C
Defines an interface to help web developers measure the performance of their pages by giving them access to frame performance data (such as frames per second).


Jobs

  • Lead Javascript Developer at Thrive (Copenhagen, Denmark) - stealthWe're a new startup with a top-tier team (ex-Podio, SK) looking for an experienced .js engineer to join us on Thrive. Funded. Generous equity, great challenges and a fun team!
    Thrive
  • Front End Technical Lead (Franklin, TN)The Front End Technical Lead is responsible for providing technical leadership on the Lonely Planet development team. Will also help spearhead innovative and creative technical solutions that are both cost effective and efficient.
    Lonely Planet

In brief

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