Our webapp uses a lot of jQuery and was tested in IE7 +, FF, Chrome - everything worked fine - on our computers with Windows 7. But when the site went live, complains that it spills out - most of our users are still sitting on Windows XP (they working machines are unlikely to be updated in the near future).
As we found out, IE7 + Win7! = IE7 + WinXP. The functionality of all jQuery kindness on IE7 + XP is almost as bad as on IE6.
So, I am fighting for solutions. Is there any documentation regarding differences in JS and IE7 CSS machines on WinXP and Win7? Is there any reasonable way to elegantly reduce JS functionality based on which browser and OS version the user has?
Edit: IE8 and IE9 have no problems. As for compatibility modes, I see this on some of our pages:
<meta http-equiv="X-UA-Compatible" content="IE=8" />
But on the page with the most complex jQuery functions (which break in the most fantastic way) there is actually no such tag at all.
source share