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WPD 663: CSS exclusions in grid layout, “strict mixed content checking” in Firefox, Gulp 4’s new task execution system

  • Posts

    • @………: Grid layout and CSS Exclusions make sense together, post w/ use case
    • Web Animations - Chrome 50 adds "cancel" event and "paused" .playState, @………’s post
  • Misc

    • Mozilla implements the block-all-mixed-content CSP directive, bug
      • This is an opt-in directive which enables web pages to activate “strict mixed content checking” (spec); this blocks all mixed content (incl. passive) and suppresses user override capabilities; it also extends to nested iframes.
    • Developer tools updates:
      • WebKit Inspector: Display the CSP hash for inline scripts and style sheets, screen. ⁂ Firefox DevTools: Filter out requests in the Network panel, list individual properties being modified in the Animation panel, @………’s post.

  • Other

    • Gulp 4’s new task execution system (gulp.parallel and gulp.series), @………’s post (6-min video)
    • HTML Standard adds navigator.hardwareConcurrency (№ of available logical processors), spec (commit)
      • From the wiki: “The intended use for the API is to help developers make informed decisions regarding the size of their worker threadpools to perform parallel algorithms.”

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