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Request Metrics real user monitoring
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Recent Features

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    Page Visibility API

    One event that's always been lacking within the document is a signal for when the user is looking at a given tab, or another tab. When does the user switch off our site to look at something else? When do they come back?

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    fetch API

    One of the worst kept secrets about AJAX on the web is that the underlying API for it, XMLHttpRequest, wasn't really made for what we've been using it for.  We've done well to create elegant APIs around XHR but we know we can do better.  Our effort to...

Incredible Demos

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    Firefox Marketplace Animated Buttons

    The Firefox Marketplace is an incredibly attractive, easy to use hub that promises to make finding and promoting awesome HTML5-powered web applications easy and convenient. While I don't work directly on the Marketplace, I am privy to the codebase (and so...

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    Introducing MooTools HeatMap

    It's often interesting to think about where on a given element, whether it be the page, an image, or a static DIV, your users are clicking.  With that curiosity in mind, I've created HeatMap: a MooTools class that allows you to detect, load, save, and...

Discussion

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