IEBlog

Internet Explorer Team Blog

  • IEBlog

    Creating Files through BlobBuilder

    • 11 Comments
    As Web sites transition more and more into Web applications, working with files in meaningful ways is becoming increasingly important. Starting with Platform Preview 2, IE10 includes support for the File API , enabling developers to read and slice files on the client. Platform Preview 4 adds support for BlobBuilder , a way for developers to create new files. IE10 also has two new methods that allow the user to save blobs to their computer, enabling great end-to-end experiences when working...
  • IEBlog

    Debugging IndexedDB Applications

    • 11 Comments
    IndexedDB is a W3C Working Draft that enables JavaScript developers to store, search, and retrieve data on the user's local client, even when Internet connectivity is disabled . This blog post describes IDBExplorer, a tool we use internally to debug IndexedDB applications. IDBExplorer lets you view database schemas, object store content, and index details. Exploring the tool with an example IndexedDB App To illustrate, I created an application that tracks my New Year’s resolutions...
  • IEBlog

    This Week in Privacy

    • 15 Comments
    In the last ten years Microsoft has invested heavily in user privacy. Just like security, privacy considerations are baked into every Microsoft product. It is almost a year since the World Wide Web Consortium (W3C) , an international community that develops open standards to ensure the long-term growth of the Web, accepted and published Microsoft’s member submission for an Internet Standard to help protect consumer privacy. Last September I described how the W3C had announced...
  • IEBlog

    IE10 Compat Inspector

    • 18 Comments
    Compat Inspector is now available for IE10. Use Compat Inspector to quickly identify if Internet Explorer platform changes affect your site. Whether you're preparing for IE10 or still updating for IE9, run Compat Inspector on any page experiencing problems. Then watch for messages explaining potential issues and steps you can take to resolve them. About Compat Inspector Compat Inspector is a JavaScript-based testing tool that analyzes your site while it runs. Compat Inspector...
  • IEBlog

    Under the Covers: Let It Snow…

    • 37 Comments
    With one of those rare Seattle snowstorms underway today, I feel this is a great time to publish this description of our Holiday 2011 Test Drive demo “Let It Snow.” —Editor When a browser effectively uses the underlying hardware, the possibilities are limitless. Over the holidays we released a demo that helps showcase the advantages of a fully hardware-accelerated, touch first browsing experience with Internet Explorer 10. This post takes a closer look at how the Let It Snow demo was created....
  • IEBlog

    Staying Safe Online in the New Year

    • 4 Comments
    The bad guys didn’t take a holiday vacation: Internet Explorer’s SmartScreen service blocked nearly 2 million malware downloads per day on average from mid-December through New Year’s. December 25 saw a 30% spike in malware blocks— successfully preventing users from being tricked into giving their PCs an unwanted “present.” January is a great time to resolve to stay safer online. Microsoft works around the clock, year-round, to help. By following a few simple best practices , including opting...
  • IEBlog

    Introducing Seven More IEBlogs

    • 22 Comments
    Today we introduce seven new language versions of IEBlog— French , German , Portuguese (Brazil) , Korean , Japanese , Chinese (PRC) , and Russian . Links to these appear in the new “Languages” block at the top of the right column. We plan to publish translated versions five to ten days after their appearance on the English language IEBlog. We’ve worked hard to localize most of the language elements on the page and in the posts themselves. Text within images will remain in English though we translate...
  • IEBlog

    Controlling Selection with CSS user-select

    • 28 Comments
    IE10 Platform Preview 4 includes support for a new CSS property, -ms-user-select , which makes it easier for Web developers to control exactly what text can be selected on their Web sites. If you were to watch me all day at my workstation, you would notice that as I read on the computer, I select text. I’m not the only one who reads like this; selecting text on the Internet is important in many other scenarios. Consider a typical news Web site. Most pages will include a news article...
  • IEBlog

    CSS Corner: Using the Whole Font

    • 34 Comments
    With cross-browser support for both the CSS3 @font-face rule and the WOFF font packaging format , modern Web typography has expanded far beyond the realm of ‘ Web-safe fonts .’ Well-known magazines such as the New Yorker use Web fonts to preserve the typographic personality of their headlines, while [US] President Obama’s re-election campaign uses Web font service Typekit to host their identity font. One remaining limitation prevents Web designers from using the entire font: the...
  • IEBlog

    Let It Snow... Faster!

    • 110 Comments
    In the spirit of the holiday season, we offer a new HTML5 experience that makes the most of your PC hardware and the new touch capabilities in Windows 8. Check out Let It Snow and get ready for a GPU-powered snow storm. This experience brings together hardware-accelerated HTML5 canvas, SVG, CSS, and more. On Windows Developer Preview with support for multi-touch in IE10 , you can reach out and brush the snow off the sign and reveal a holiday message -or just use your mouse. If you think...
  • IEBlog

    Updated Look for IEBlog

    • 64 Comments
    Today we introduce an updated look and layout for the IEBlog. Here’s an overview of the design and layout changes we made: New font family – We’re using the Segoe UI font to align with Windows 8 Metro style. New color scheme – We have a new color scheme inspired by the Windows 8 Metro style Start screen. Improved performance – The blog’s home page defaults to excerpt view. This substantially reduces load time since excerpts do not contain images or...
  • IEBlog

    Interoperable HTML5 Quirks Mode in IE10

    • 39 Comments
    The fourth IE10 platform preview includes enhanced HTML5 support by using an interoperable quirks mode based on the behavior defined in HTML5. This HTML5-based quirks mode is the default quirks mode in IE10. Users and Web developers want sites to just work across browsers. A key part of this is making HTML, CSS, and JavaScript work in the same way across implementations. HTML5 facilitates cross-browser consistency by defining parts of the Web platform previously left unspecified...
  • IEBlog

    IE 9.0.4 Available via Windows Update

    • 17 Comments
    The December 2011 Cumulative Security Update for Internet Explorer is now available via Windows Update . This security update resolves three privately reported vulnerabilities in Internet Explorer. The most severe vulnerabilities could allow remote code execution if a user visits a specially crafted Web page using Internet Explorer. An attacker who successfully exploited this vulnerability could run a malicious application on the affected system. Users whose accounts are configured to have fewer...
  • IEBlog

    Media Capture API: Helping Web developers directly import image, video, and sound data into Web apps

    • 36 Comments
    Last March, we released a prototype implementation of the audio portion of a working draft of the W3C Media Capture API on HTML5 Labs . This prototype publicized some proposed API enhancements described in section 6.1 of Microsoft’s HTML Speech XG Speech API Proposal . We have now updated the prototype to include the image and video capture features described in the proposal to support scenarios we’ve heard are important for Web developers, as well as incorporating your feedback on audio. As more...
  • IEBlog

    Moving to Standards-based Web Graphics in IE10

    • 22 Comments
    Users expect to visit any site on the Internet with any browser and enjoy a similar quality experience. We first discussed Internet Explorer’s commitment to achieving the goal of consistent “same markup, same results” across browsers in a post on March 16, 2010 announcing the release of the IE9’s first platform preview. IE9 moved us a long way toward that goal and IE10’s HTML5-based Standards and Quirks modes largely completes that work. The post HTML5 Parsing in IE10...
  • IEBlog

    Working with Binary Data using Typed Arrays

    • 13 Comments
    With HTML5 comes many APIs that push the envelope on user experiences involving media and real-time communications. These features often rely on binary file formats, like MP3 audio, PNG images, or MP4 video. The use of binary file formats is important to these features to reduce bandwidth requirements, deliver expected performance, and interoperate with existing file formats. But until recently, Web developers haven’t had direct access to the contents of these binary files or any other custom...
  • IEBlog

    HTML5 for Applications: The Fourth IE10 Platform Preview

    • 86 Comments
    An updated platform preview of IE10 for the Windows Developer Preview is now available for download . This IE10 preview adds even more support for HTML5 technologies, enabling richer Web applications with significantly improved performance. IE10’s hardware acceleration of technologies like SVG, CSS3 transforms and animations delivers faster rendering than other browsers, as highlighted in this short video. See some of the new HTML5 capabilities, performance improvements in IE10. With...
  • IEBlog

    Evolving ECMAScript

    • 28 Comments
    For the Web and Web applications to keep making progress, the programming language of the Web must continue to improve. Today’s JavaScript standard lacks a few basic objects and library helpers that are vital for building rich, world-wide Web applications. Last week at the Ecma TC39 meeting at Apple’s campus in Cupertino, Microsoft shared reference implementations of proposals to address gaps in Math, String, and Number functionality as well as Globalization . To ensure that others in the community...
  • IEBlog

    Adding Personality with CSS3 Transitions and Animations

    • 15 Comments
    Advancements like high-performance compiled JavaScript and hardware-accelerated rendering of HTML5 and CSS3 in Internet Explorer 9 and 10 allow Web developers to create richer and richer experiences. Two related features, CSS3 Transitions and CSS3 Animations , give Web developers a declarative way to add personality to Web page interactions easily. This blog post describes these two features as implemented in IE10 in the Windows Developer Preview and Windows 8 Metro style apps written...
  • IEBlog

    Typing with Speed and Accuracy in IE10

    • 45 Comments
    Typing quickly and accurately is a critical part of the user experience for any piece of software. When using a device without a physical keyboard, providing a great text input experience is even more important. Windows 8 provides several capabilities to make text input great on any device, and spellchecking is one of them. Spellchecking in Windows 8 allows customers to identify misspelled words while they are entering text, have commonly misspelled words fixed automatically, and take...
  • IEBlog

    HTML5 History in IE10

    • 11 Comments
    Building fast and functional sites is a challenge with which most Web developers are familiar. Loading a new page every time the user clicks a link is slow. Fetching all content dynamically effectively disables the back button. Working with hashes is better, but still not ideal. Internet Explorer 10 in the Windows Developer Preview eliminates the compromise by adding support for HTML5 History . The pushState , replaceState , and popstate APIs provide fine-grained control over the behavior of the...
  • IEBlog

    A Best Practice for Programming with Vendor Prefixes

    • 14 Comments
    Vendor prefixes enable Web developers to experiment with new standards before they reach the Candidate Recommendation stage. I previously wrote how these prefixes are also a mechanism browser vendors use for handling timing conflicts between implementations and specifications. In building demos of new features for our IE Test Drive site and in various presentations, many of us on the IE team deal extensively with vendor prefixes. This blog post describes a pattern we’ve used in some recent demos...
  • IEBlog

    Best Practices for Getting Started with SVG

    • 11 Comments
    Web graphics in SVG (Scalable Vector Graphics) format offer better quality display over a broader range of device sizes compared to bitmap-based graphics. SVG also has inherent accessibility making it the best choice for interactive graphics and those involving text. SVG usage on the Web continues to grow. Last week at SVG Open 2011 , we had the opportunity to meet with and hear from Web developers putting SVG to use in a wide variety of real-world applications. These applications include...
  • IEBlog

    Connect Your Web Site to Your Windows 8 App

    • 15 Comments
    Windows 8 Metro style apps let developers take their Web sites’ experiences to the next level. With Metro style apps, developers can build experiences that are more immersive, beautiful, and better connected with other apps and the rest of Windows. Apps can utilize the Windows Runtime to deliver features beyond what’s possible in a browser alone such as seamless access to local files and folders, integrating with Windows 8 Charms for sharing and search, and interacting with locally-connected...
  • IEBlog

    Handling Multi-touch and Mouse Input in All Browsers

    • 19 Comments
    Touch interaction with Web sites and apps has the opportunity to improve their usability and ubiquity as the Web and Windows 8 Metro style apps play a key role on tomorrow’s touch-enabled devices. This post explains how Web developers can use the new IE10 pointer event model along with the iOS touch event model and the W3C mouse event model (as extended ) to create a cross-browser, common-code handler for pointer, touch, and mouse input. A little background: I’m fortunate to have...
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