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вторник, 4 марта 2008 г.
Internet Explorer reverses position: IE 8 will render like IE 8 by default, not IE 7
Microsoft's Interoperability Principles and IE8
We’ve decided that IE8 will, by default, interpret web content in the most standards compliant way it can. This decision is a change from what we’ve posted previously.
Why Change?
Microsoft recently published a set of Interoperability Principles. Thinking about IE8’s behavior with these principles in mind, interpreting web content in the most standards compliant way possible is a better thing to do.
We think that acting in accordance with principles is important, and IE8’s default is a demonstration of the interoperability principles in action. While we do not believe any current legal requirements would dictate which rendering mode a browser must use, this step clearly removes this question as a potential legal and regulatory issue. As stated above, we think it’s the better choice.
The rest of this blog post provides context around the different modes, the technical challenge, and what it means going forward.
Modes
Clear terminology around the different modes in IE8 (as well as other browsers) is crucial for the discussion. Wikipedia, as usual, offers a good starting point. The article about “Quirks mode” describes how modern browsers (like IE, Firefox, Safari, and Opera) all have different modes for interpreting the content of a web page: Quirks and Standards. (The article also covers “Almost Standards;” let’s set that one aside for the purpose of this discussion.)
Basically, all the browsers have a “Quirks” mode, call it “Quirks mode", and use it to offer compatibility with pages that pre-date modern standards. All browsers have a “Standards” mode, call it “Standards mode,” and use it to offer a browser’s best implementation of web standards. Each version of each browser has its own Standards mode, because each version of each browser improves on its web standards support. There’s Safari 3’s Standards mode, Firefox 2’s Standards mode, IE6’s Standards mode, and IE7’s Standards mode, and they’re all different. We want to make IE8’s Standards mode much, much better than IE7’s Standards mode.
The Wikipedia article’s explanation of why browsers have modes to begin with is worth looking at closely in this context:
"...the large body of legacy documents which rely on the quirks of older browsers represents an obstacle for browser developers, who wish to improve their support for standardized HTML and CSS, but also wish to maintain backward compatibility with older, non-standardized pages.… To maintain compatibility with the greatest possible number of web pages, modern web browsers are generally developed with multiple rendering modes: in "standards mode" pages are rendered according to the HTML and CSS specifications, while in "quirks mode" attempts are made to emulate the behavior of older browsers."
We decided to keep IE7’s Standards mode available in IE8. Our thinking was that this facility would be helpful as the web moves gradually from the large quantity of legacy content authored around IE7’s behaviors to a new era of much more interoperable and web standards compliant browsers. We based the decision to have an additional mode in IE8 on our experience with feedback from IE7. Specifically, during the transition from IE6 to IE7, many end-users found pages authored for the previous IE version’s Standards mode didn’t work well with the new version’s Standards mode.
The Technical Challenge
One issue we heard repeatedly during the IE7 beta concerned sites that looked fine in IE6 but looked bad in IE7. The reason was that the sites had worked around IE6 issues with content that – when viewed with IE7’s improved Standards mode – looked bad.
As we started work on IE8, we thought that the same thing would happen in the short term: when a site hands IE8 content and asks for Standards mode, that content would expect IE7’s Standards mode and not appear or function correctly.
In other words, the technical challenge here is how can IE determine whether a site’s content expects IE8’s Standards mode or IE7’s Standards mode? Given how many sites offer IE very different content today, which should IE8 default to?
Our initial thinking for IE8 involved showing pages requesting “Standards” mode in an IE7’s “Standards” mode, and requiring developers to ask for IE8’s actual “Standards” mode separately. We made this decision, informed by discussions with some leading web experts, with compatibility at the top of mind.
In light of the Interoperability Principles, as well as feedback from the community, we’re choosing differently. Now, IE8 will show pages requesting “Standards” mode in IE8’s Standards mode. Developers who want their pages shown using IE8’s “IE7 Standards mode” will need to request that explicitly (using the http header/meta tag approach described here).
Going Forward
Long term, we believe this is the right thing for the web. Shorter term, leading up not just to IE8’s release but broader IE8 adoption, this choice creates a clear call to action to site developers to make sure their web content works well in IE. This topic is one of many things we’ll talk about with respect to IE8 at MIX this week.
Thanks,
Dean Hachamovitch
General Manager
Internet Explorer
P.S. For further information on today's announcement, please go to the news release on our PressPass site.
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Games & Hobbies10 Tips to Change Yourself From a Dedicated Couch-Potato to a Gym Enthusiast
Exercise helps keep you happy and vital. Studies show that folks who exercise are healthier, cheerier, more energetic, think more clearly, sleep better, and have delayed onset of dementia. What’s more, they get relief from anxiety and mild depression—comparable to medication and therapy.
But of course, no one really disputes the benefit of exercise. The trick is actually DOING IT.
My own favorite activity is reading in bed—preferably, while snacking. It took me a while, but I’ve managed to get myself into the habit of exercising regularly.
These ten strategies helped me stick to my routine:
1. Always exercise on Monday. Starting the week on the right foot makes it easier to stick to your plan.
2. Never skip exercising for two days in a row. You can skip a day, but the next day, you must exercise no matter how inconvenient. This rule dramatically increased the number of times I exercise over the course of a month.
3. Remember, exercise GIVES energy. If you feel too tired to exercise, remember that exercise boosts energy. It took me a long time to notice that I’d drag myself to the gym, work out for forty minutes, and leave feeling far more energetic than when I went in.
4. Any work-out “counts.” Give yourself credit for the least effort. My father, a runner, always said that all he had to do was put on his running shoes and close the door behind him. Why does this work? Because if I know I can quit after five minutes, I get started—and once I start, I usually follow through with my usual routine. Getting out the door is by FAR the toughest part.
5. You don’t have to shower. One problem—mostly for women—is that taking a shower can take too much time. Look for exercise like strength-training, yoga, or walking, that don’t make you sweaty.
6. Throw money at the problem. Spend more to go to a more convenient gym, or to get an iPod, or to work with a trainer. Exercise pays off BIG in your quality of life, so this is a place to splurge.
7. Don’t set the bar too high. I have a friend who thinks it’s not worth exercising unless she’s training for a marathon – and so she never exercises. She’d be better off going for a one-mile run five times a week.
8. Don’t kid yourself. Belonging to a gym doesn’t mean that you go to the gym. Having been in good shape in college doesn’t mean you’re in good shape today. Be honest about what your habits really are now.
9. You have time. Just take a twenty-minute walk. If you can’t do more, do that! Just a twenty-minute walk will really pay off.
10. Exercise for SANITY not VANITY. I find it more motivating to think about the fact that exercise is going to make me feel happier, calmer, and more energetic, right now, rather than to think about vaguer long-term benefits, like strengthened immunity or longer life. It’s not clear that exercise has much impact on weight loss, so don’t be give up when the pounds don’t fall off. It’s worth doing for so many other reasons.
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