Wednesday, March 5th, 2008
IE 8: Better Ajax, CSS, DOM, and new features
MIX has started, and we have the news we have been waiting for, for some time. What is IE 8 going to do?
Microsoft has put out an IE 8 Readiness Report that discusses everything.
There is a TON of amazing stuff here. It also looks like they will be using the standards for most of this stuff, but we need to see more. E.g. is cross domain messaging using postMessage?
But, having 6 connections per host and the like is huge:
Ajax Improvements
- AJAX Navigation enables users to navigate back
and forth without leaving the AJAX application and could be used
navigating a page without performing a traditional full navigation.
This allows websites to trigger an update to browser components like
the address bar by setting the window.location.hash value, firing an
event to alert components in the page and even creating an entry in
the travel log. - DOM Storage is a simple-to-use method for
storing and retrieving strings of key/value pair data. Data can be
stored per tab instance for a session or persisted to the local
machine. This allows pages to cache text on the machine which
reduces the effect of network latencies by providing faster access
to pre-cached data. Several innovative uses are possible. For
example, use this in combination with the new network connectivity
event to allow a page to cache data if it detects that the computer
is offline. - Connectivity events allow websites to check
when the user is connected to the network and receive notification
of connectivity changes. - Six connections per host instead of two for
broadband scenarios and a scriptable property allow for more
improved performance by allowing parallelization of downloads in
Internet Explorer 8. In addition, this increases functionality by
ensuring a request is not blocked to a host if two connections
already exist. Websites can optimize their downloads based on a
scriptable property. - XMLHTTPRequest Enhancements include a timeout
property that can be set to cancel the request if necessary,
allowing developers to manage the request better.
Cross domain is here:
- With Cross-domain Request (XDR), developers can
create cross-site data aggregation scenarios. Similar to the
XMLHttpRequest object but with a simpler programming model, this
request, called XDomainRequest, is the easiest way to make anonymous
requests to third-party sites that support XDR and opt in to making
their data available across domains. Three lines of code will have
you making basic cross-site requests. This will ensure data
aggregation for public sites (such as blogs) will be simple, secure
and fast. - Cross-document Messaging (XDM) APIs allow
communication between documents from different domains through
IFrames in a way that is easy, secure and standardized.
HTML and CSS
- CSS 2.1 Compliance
- Data URI Support
- Better CSS printing
- CSS Selector API support
- Acid2 support
- Better DOM Core support
New Features
- Activities are contextual menu options which quickly access a service from any Web page. Users typically copy and paste from one Web page to another. Internet Explorer 8 Activities make this common pattern easier to do.
- WebSlices is a new feature for websites to connect to their users by subscribing to content directly within a webpage. WebSlices behave just like feeds where clients can subscribe to get updates and notify the user of changes.
And we also have other features such as less memory leaks!
What do you think?
Related Content:
4.5 rating from 56 votes
I hope they keep their promises.
Ok, this all sounds good and all that, but when can I get my hands on IE8 Beta and try these things out myself? :)
Hope better DOM core support means things like the w3c event model
Some really cool stuff in there… some so cool that I might even want to use ie8 but unless they make a mac version (yeah right) I won’t be leaving Safari any time soon. I long for the day where I can curse the other browsers for not implementing a cool feature that I want to code into my sites. I’m tired of cursing IE. Pretty much any time IE comes out of my mouth, a dollar goes into the profanity jar.
Competition is good, makes stuff better. BTW, is the beta available? Are these links off this page supposed to work? http://www.microsoft.com/windows/products/winfamily/ie/ie8/readiness/Install.htm
Great news! cant wait to see IE 8 in action! Sounds like a total makeover from crappy IE7
Yeah, what’s with all those non-working beta and whitepaper links? Are they releasing a beta?
no fair – what’s the point of linking to pages which are not public?
I thought hell froze over when they reversed their decision on the rendering issue this week – but wow.
It looks like Microsoft may actually be pushing the envelope again.
I thought that the links would go live this morning at the keynote, so I thought I would put them in now so they work as soon as it goes live :)
E4X?
Wow, IE8 is looking like a pretty rockin’ browser. I especially love Activities and the new Ajax/DOM/Selector updates. Something that has me curious though is the “Improved Namespace Support” section where it mentions SVG as a feature. I wish the whitepaper were publicly available to see if they really are implementing SVG or if it requires a plugin like what is mentioned later in the paragraph.
I see the addition of some features at the expense of shoring up standards support. Some of these are needed for those of us who do hard core AJAX but the vast majority of the web will see no benefit. I am concerned about this DOM Storage thing, which sounds like a potential rift with HTML5 storage, Google Gears, and Air persistence. Why are we hearing about CSS 2.1 support and Acid 2 from IE when everybody else is talking CSS 3 and Acid 3. I find it somewhat disgusting that people sound excited about the IE team conceding defeat on past battles and openly plotting new ones. Frankly I’ve been being abused by these guys for almost 10 years. I don’t trust them, not even kind of.
There is a beta!
http://www.microsoft.com/downloads/details.aspx?FamilyId=1A2E3DDD-B38B-439D-BBA7-F179A5D3ECAF&displaylang=en
really great news. No use about JS engine?
Looks like they fixed a previous issue with rendering PNGs using alpha opacity + CSS opacity combined. (Testcase)
The links here work now:
http://www.microsoft.com/windows/products/winfamily/ie/ie8/readiness/Install.htm
Installing IE8 as we speak, let us pray this is the beginning of the end of hating IE (even though I will still probably use Firefox as my browser).
This is great, I can’t wait to get my hands on the beta. I just hope everyone else can keep up. Connectivity Events and DOM Storage, v. cool.
It does indeed use postMessage.
Tried it on a valid web page, correctly seen (or almost) by other recent navigators, but it just behave like crap with “position:fixed”.
This seems to be another specific CSS, like the 7
* CRY *
If you wanna test and don’t believe me, or want to explain me why, here’s my test page : http://archetypejs.org/slidy-fosdem/Slidy.html
Connectivity Events are for Vista only.
Ok, just found with Web Developer tools([SHIFT]+[F12]), that it just has used quirks mode (don’t know why) to render the page.
Works WAY better in standard mode :)
But it’s not perfect :/
Just have to find out why it uses quirks mode (there is no other header than just … may be that)
I love hot hotmail breaks under IE8 :)
When I do the ACID2 test… it works but only if the window is in fullscreen. It breaks slightly if i have a smaller window… is this right? Not even that small… I guess if i make it about 700px wide or less.
Google Maps is knackered as well.
I think they’re getting ready for their new “Software as a service” approach.
They’re gonna offer a browser that does more than the others in ways that are not regulated by any standards and will offer stuff like Word online… which will only work on IE8.
I predict this is how they will fight the browser war.
You can quote me :)
@Jérôme: which is probably why more and more Microsoft applications (including the new Office Live) work cross-browser. Oh wait…
Acid3 test:
- 11/100 without MSXML
- 17/100 with MSXML “addon activation” (strange security check)
Looks really weird, and this is the worst result of a navigator I’ve seen.
It may not be in “Standard mode” but I can’t popup the Developer tools on this page to check or force it ( ??? )
For some reason, i can’t even get it to install…
“Your Operating System is not supported”.
I have Windows Server 2003 and it won’t even install. HAH! I hate IE
Oops I posted the XP-specific link above. This is the full list of downloads:
http://www.microsoft.com/windows/products/winfamily/ie/ie8/readiness/Install.htm
As predicted, the web got broken with the default IE8 mode. What worries me is that in order for the browser to be usable people will just switch to IE7 compatibility mode and forget switching back, hence we are going back to IE7 rendering again even for users that upgraded to IE8. Just look at the initial reaction of non developers. BTW The SunSpider javascript benchmark with IE8 gave score of 10900 while FF 2.0.0.12 gave me 24300 on the same machine. Pretty good performance, yet not better than the new FF3, Opera and Safary. Also pretty good surprise was the Inclusion in IE8 of a Dev tool resembling firebug. That is good. IE8 shapes up a solid start, yet I think Microsoft might revert to the initial of plan of making IE7 mode be the default as of now the web is broken in IE8 mode.
So, we are back at adding proprietary extensions now? Really great.
I don’t see anything wrong with proprietary extentions. That’s how we got Ajax.
@kim3er
You’re right… I have nothing against browser trying to innovate… and maybe this tag is an innovation… but the concept of freezing a website in time is detrimental to innovation in itself…
@JeromeLapointe: I quite agree, but not everything is about innovation, sometimes it has to be about good business practice first.
I endeavour to use a standards based approach whenever I work on a new project. At some point though, I will have to break the site to allow consistent look, feel and functionality across all main browsers at the time of release. There is something appealing (to me at least) about the idea that I can add a tag to a site that says “I work for these browsers and these browser versions”. With the site tagged, I can rest assured that my site will work with every subsequent version of IE.
It is then down to me as a developer to make sure I revisit the site often to keep the site fresh and innovative. It is also up to the user to make sure they are using the latest products. Working this way (I think) the Internet can progress more rapidly with less of the pain attributed to a new browser release. There is also scope to see the new meta tag as a means of graceful degradation, which is a concept that is synonymous with the web standards approach. I hope Mozilla, Opera & Webkit see fit to push for a standard in this area.
Serious, first thing I did was point it at our newest development which is valid strict html and it complete broken the website. After reading through the developer documents I see nothing that should prevent it from rendering properly. My current solution (because I know ie8 will be crammed down our throat in the next 12 months) is the X-UA-Compatible meta tag, because there is no way I am going to spend a week debugged ANOTHER version of IE right now.
Just got my app (just a mash-up of other people’s widgets, really) working in Chrome and Firefox.
Tested it in IE8.
Windows hung. Browser crashed.
There’s this nice novel “debugging window” that looks like something from 1998 VBA, and has a lot of buttons that don’t seem to do much.
Right now it’s silently killing all the jQuery AJAX requests, and not throwing any warnings or errors. Even lightbox is broken.
This is how Microsoft deserve their legions of haters. It’s even more depressing that I expected it to behave like that.