IEBlog

Internet Explorer Team Blog

  • IEBlog

    Netscape 8 and Internet Explorer's XML Rendering

    • 229 Comments
    We’ve just confirmed an issue that has started to be reported on newsgroups and forums that after installing Netscape 8 the XML rendering capabilities of Internet Explorer no longer work. That means that if you navigate in IE to an XML file such as an RSS feed http://msdn.microsoft.com/xml/rss.xml or an XML file with an XSLT transformation applied then rather than seeing the data you are presented with a blank page. We currently have the following work around for people that are hitting this issue...
  • IEBlog

    Inspect Your Pages in IE

    • 42 Comments
    The information published in this post is now out-of-date. —IEBlog Editor, 21 August 2012 Hi my name is Markus Mielke and I am a Program Manager working with Chris Wilson on CSS and platform support. Today, I would like to talk about DOM Inspectors for IE. For analyzing web pages and drilling down into problems on a page it becomes more and more important to have a DOM Inspector handy. Not a full fledged debugger but something quick that allows a user to explore their HTML document and understand...
  • IEBlog

    Security is an Industry Problem

    • 48 Comments
    The information published in this post is now out-of-date and one or more links are invalid. —IEBlog Editor, 21 August 2012 I've received enough questions in email from different people about a recent vulnerability in another browser that I wanted to post something here. I think the best place for the facts is with the people responsible for the browser. I say this based on the number of articles I read that misrepresent issues in Windows and IE. I also think that security is an industry...
  • IEBlog

    Internet Explorer 7 User Agent String

    • 155 Comments
    Internet Explorer 7 Beta 1 is fast approaching. A tiny but significant code change was checked in this week: Internet Explorer's new User-Agent string. The User-Agent (or UA) string is sent along in the headers of every HTTP request so the server knows what type of browser is making the request. For a quick introduction on handling of the User-Agent string, check out George Shephard's article in MSDN Magazine. Internet Explorer 7 User-Agent As we updated the User-Agent, we considered application...
  • IEBlog

    IE7 Transparent PNG Implementation

    • 148 Comments
    My name is Sam Fortiner and I’m a developer on the Internet Explorer team here at Microsoft. I joined the company about a year ago when I was given the opportunity to work on IE. Since then I’ve worked on several aspects of IE and recently settled down into the layout and display team. As part of my work in this team, I implemented support for per-pixel alpha in PNGs. Support for per-pixel alpha in PNGs in IE, or transparent PNGs as I’ll refer to them going forward, has been called many things...
  • IEBlog

    IE7 beta 1 – A few details…

    • 392 Comments
    We’ve heard some great feedback on what web developers would like to see in IE7, both from the responses to my last post and from the resources I referred to.  The rest of the team was cranking away while I was away on parental leave, and I wanted to share a few details about what they were doing: The first couple of things they’ve done are: Support the alpha channel in PNG images. We’ve actually had this on our radar for a long time, and have had it supported in the code for a while now. We...
  • IEBlog

    TLS and SSL in the real world

    • 48 Comments
    Quite a bit has been written about the Secure Sockets Layer (SSL) protocol and its successor Transport Layer Security (TLS), so I won't cover the protocols in detail here. The following are good references if you want to get a quick refresher. Microsoft KB article describing the SSL Handshake Wikipedia Overview of TLS Happily, a majority of web users now know to look for the lock icon and the HTTPS in the address line to identify when their connection is secure. Unfortunately, relatively...
  • IEBlog

    Hiring IE Evangelist

    • 24 Comments
    The information published in this post is now out-of-date. —IEBlog Editor, 21 August 2012 Jeremy Mazner just posted news on his blog that there is a position opening for a technical evangelist focusing on IE. That’s great news! Working either on or with the IE team is definitely a great experience. Thanks -Dave
  • IEBlog

    April IE Security Update is Available

    • 20 Comments
    Hello. My name is Al Billings and I'm a test engineer on the Internet Explorer test team posting to the IE Blog for the first time. I want to announce that the April 2005 security updates are available and that a critical update for Internet Explorer is included: MS05-020 – Cumulative Security Update for Internet Explorer (890923) This contains fixes for the following vulnerabilities: DHTML Object Memory Corruption Vulnerability ( CAN-2005-0553 ) URL Parsing Memory Corruption...
  • IEBlog

    Internet Explorer and Connection Limits

    • 87 Comments
    From time to time, I've heard the question: "Why can IE only download two files from the same site simultaneously?" Some more savvy users observe that this limitation probably makes sense in dialup cases where bandwidth is constrained or when lots of small files are being downloaded, since the TCP/IP slow start algorithm comes into play. But for those of us lucky enough to be on broadband, this limitation can be annoying. If I want to download a large number of large files, I have to sit around...
  • IEBlog

    Updated Documentation on Controlling Security Restrictions

    • 8 Comments
    The information published in this post is now out-of-date and one or more links are invalid. —IEBlog Editor, 21 August 2012 Our documentation team has just completed updating our documentation covering how administrators and developers can control certain features. This includes the following articles: About Zone Elevation Introduction to Feature Controls About URL Security Zone Templates These documents are useful in understanding the security work undertaken in Windows XP SP2...
  • IEBlog

    Understanding the Windows lifecycle policy (for all you IT Pros out there)

    • 44 Comments
    With so many customers relying on IE, it helps to get a solid grasp of the Windows Lifecycle Policy , which at first blush can appear to be a bit cryptic. Fortunately I think I can shed some light on Microsoft’s policy with these simple rules: We support the version of IE that shipped with an OS or Service Pack for as long as the OS or Service Pack is supported We support the latest standalone version of IE (that’d be IE 6 SP1) on every OS that’s still supported (unless superseded by a newer version...
  • IEBlog

    Internet Explorer Compatibility Evaluator

    • 56 Comments
    My name is Tariq Sharif and I am a program manager in the IE security and networking team. I joined IE team shortly after Windows XP Service Pack 2 was released. Windows XP Service Pack 2 introduced many new security features for Internet Explorer, which can cause compatibility issues for some web applications and sites. In order to help solve such issues I am pleased to announce that the Internet Explorer Compatibility Evaluator (IECE) is now available. IECE is released as part of Microsoft Application...
  • IEBlog

    A HTTP Detective Story by Eric Lawrence

    • 60 Comments
    As a little kid, my dad read with me a lot; we usually read detective stories. While of questionable literary merit, those books developed in me a burning desire to figure stuff out, to pull back the curtain, to understand the mysterious. I still maintain that curiosity today-- I joined the IE team because I wanted to learn the browser inside out, and I developed Microsoft Fiddler to expose the secrets of HTTP in a user-friendly way. I recently came across a bug in the bug database for IE7 which...
  • IEBlog

    IE and Standards

    • 580 Comments
    First of all, I’d like to introduce myself. My name is Chris Wilson; I’m the lead program manager for the web platform in IE. (I am NOT Chris Wilson the drummer for Good Charlotte. :^) ) I joined the IE team shortly before we shipped IE 2.0 in 1995, and worked in various releases for every major release from then until IE 6.0’s release in 2001. After IE 6.0 shipped, I worked on the Avalon project until I decided to rejoin the IE team four months ago. During my tenure on the IE team, I’ve frequently...
  • IEBlog

    Mark of the Web

    • 43 Comments
    With the Local Machine Zone Lockdown introduced in Windows XP SP2 an HTML file on your hard drive will no longer be able to run script and active content without user permissions being granted through the information bar and an additional prompt. This is part of the work to ensure that if you do get bad content on your machine it cannot run with elevated privileges and do nefarious things. Users should exercise caution whenever the information bar appears and be sure that this is really content they...
  • IEBlog

    Internet Explorer and Accessibility

    • 48 Comments
    Since this is my first post on the IE Blog, I wanted to introduce myself. My name is Kelly Ford and I’m part of the test team responsible for testing the user experience in IE. I also head up our accessibility testing efforts. Today I wanted to talk about three aspects of accessibility as they relate to IE and Windows in general. First is access to the Windows OS for individuals with disabilities, second are a couple of hints for users of screen readers using IE in XPSP2 and finally is a request...
  • IEBlog

    Netscape 8 Beta, the IE Platform, and the IE Browser

    • 38 Comments
    The information published in this post is now out-of-date and one or more links are invalid. —IEBlog Editor, 21 August 2012 I haven’t tried the Netscape beta yet, but I have read that it allows users to switch between the Gecko rendering engine (the one used in Firefox) and Internet Explorer’s rendering engine. I think this a good opportunity to write about the Windows Web Browsing Platform (the IE Platform) and its counterpart, the IE Browser. The Browser is easy to explain. It’s the blue...
  • IEBlog

    Scripting

    • 20 Comments
    The information published in this post is now out-of-date and one or more links are invalid. —IEBlog Editor, 21 August 2012 We received some good questions about how the JScript engine works in IE. What version of JScript is supported? The version of JScript included with IE6 is EcmaScript edition 3 compliant. I’ve seen some confusion recently with some even claiming that we do not support EcmaScript. In fact JScript, JavaScript and EcmaScript are all basically the same language with a different...
  • IEBlog

    IE7 Platforms and Outlook Express

    • 138 Comments
    We’ve seen lots of questions about the IE7 announcement. Many of these we are not ready to answer and discuss at this time but there are two things that I can offer clarification on. Platforms. We currently plan to make IE7 available for Windows XP SP2 and later. This will therefore include availability not only for the 32bit version of Windows XP SP2 but also for Windows XP Professional x64 Edition and Windows Server 2003 SP1 both of which are due to be released soon. As Dean commented in his original...
  • IEBlog

    What have you guys been doing since IE6?

    • 79 Comments
    Before I answer this, I want to acknowledge that we have a problem if people are asking this question. Listing what we’ve done or our priorities will help but won’t address the problem. Responding to specific questions with a great product and great documentation (for developers, for IT professionals, for deployment specialists, and for other customers as well), and doing that consistently for as long as we’ve been quiet about IE will help more. So, what happened after Microsoft released IE6? Mostly...
  • IEBlog

    IE7 Comments Recap

    • 70 Comments
    Wow, there are a lot of comments. I wanted to recap the main themes I read in the comments and use them as a roadmap for the topics that we will post about over the next few weeks. What have you guys been doing since IE6? What makes IE7 on Win2K so hard anyway? Standards, standards, standards… say something! What’s in IE7, or at least when can we find out? Don’t you understand that your product is fundamentally not secure because of (blank) and you should rip (blank) out? (I want to call out a comment...
  • IEBlog

    Listening to Customers

    • 112 Comments
    My job is focused on receiving feedback from customers and there’s plenty of it. Feedback comes from a great many sources including corporate customers, product support teams, critical problem resolution teams, newsgroups, blogs, ISVs, web developers, colleagues, friends and family. One of the challenges of working on what is arguably the most used piece of software in the world is that there is such a broad array of customers with many different requirements. There are three broad categories of...
  • IEBlog

    IE7

    • 1,164 Comments
    The information published in this post is now out-of-date. —IEBlog Editor, 21 August 2012 Today at RSA, Bill Gates talked about Internet Explorer 7. As the guy responsible for IE, I wanted to say a couple of things about it. First, some basics: we’re committing to deliver a new version of Internet Explorer for Windows XP customers. Betas of IE7 will be available this summer. This new release will build on the work we did in Windows XP SP2 and (among other things) go further to defend users...
  • IEBlog

    Table Rendering

    • 77 Comments
    The information published in this post is now out-of-date and one or more links are invalid. —IEBlog Editor, 21 August 2012 A comment from Dave P on this blog touched on the interesting aspect of table rendering. Dave said “ IE renders pages differently from, say firefox. One of the noticeable differences is that IE waits for the entire page before displaying it. “ Actually this is not true and you can se from going to many pages that Internet Explorer does support progressive rendering of...
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