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WPD 410: Responsive images demoed in Firefox Nightly, 6 quick rules for the alt attribute on images

  • News

    • Responsive images enabled by default in Firefox Nightly
      • Tested features: (1) <img srcset> w/ x descriptors, screen (bin). (2) <img srcset/sizes> w/ w descriptors, video (bin). (3) <picture> element (for art direction), video (bin). (Note: Unlike Chrome, the image source does not auto-update on window resize).
    • Microsoft announces support for asm.js in Chakra (JavaScript engine), post
    • jQuery puts its plugin registry in read-only mode and recommends publishing on npm instead, source
    • Chrome development updates:
      • (1) App installation banners, bug, status, screen, works in conjunction with Service Workers and Web Manifest (details). (2) Background Sync API for Service Workers, bug, status: “Let’s try to get a minimal viable product implemented by M43”. (3) Web Bluetooth, status.
  • Posts

    • Banning zero-rating leads to lower mobile internet access prices”, @………’s post
    • Managing conflicts in long-lived branches with Git’s rerere mechanism, @………’s post
  • Content

    • 6 quick rules for setting the <img> alt attribute, @………’s page
  • Demos

    • “3D hover plane” effect with (dynamic) CSS 3D Transforms, @………’s demo (mouse only)

  • Other

    • A few basic examples of progressive enhancement in HTML and CSS, @………’s post
    • Mozilla to start notifying users when add-ons slow down Firefox (incl. “Disable” button), @………’s post
    • Twitter video’s supported video formats: MP4, WebM, HLS (.m3u8), @………’s post
    • “The CSS Working Group is looking to open up CSS with JavaScript APIs”, source
      • “As a matter of fact, the CSS WG discussed for the first time the possibility of accepting a polyfill as a valid implementation for CR exit criteria.” (post incl. 8 new, upcoming drafts)
    • Info about HTTP/2 support in current and upcoming versions of Firefox, @………’s post

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