Here are two test cases that have made me cringe lately:
You'll need to try it on the Android browser.
This one is with Bing Maps:
http://urloritdidnthappen.appspot.com/render/254001
and this one with Google:
http://urloritdidnthappen.appspot.com/render/288001
See the big red rectangle with position:absolute hovering on the map?
Notice how with position: fixed in the header that thing disappears?
I suspect some sort of z-index tomfoolery going on, which probably doesn't bode super well for the performance of position: fixed on Android. We can only hope for the day when ChromeWebView becomes available to us HTML5 app developers.
Monday, October 15, 2012
Sunday, June 24, 2012
Velocity 2012!
![Velocity Conference 2012 Velocity Conference 2012](http://assets.en.oreilly.com/1/event/79/velocity2012_speaking_125x125.png)
This year's Velocity conference schedule looks excellent, with several repeat speakers from years past, but also lots of new ones. I'll be moderating a panel on Wednesday at 5:20pm titled JavaScript Performance MythBusters, via JSPerf as well as a Browserscope lightning demo around 10:30am on Wednesday.
If you're there and want to say hi, shoot me an email at elsigh at gmail. =)
Here are the links to the slides:
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