On 17/03/2011 11:48 PM, Barney Carroll wrote:
[snip]
Microsoft describe X-UA-Compatible in detail here:
http://blogs.msdn.com/b/askie/archive/2009/03/23/understanding-compatibility-modes-in-internet-explorer-8.aspx
MSDN Blog has never linked to any of my test cases. The MSDN Blog says
that the IE Guillotine bug was fixed in IE7.
[snip]
Now I have always used the latter feature (specified browser mode via
the DOM tools) in IE8 (and now IE9) to test site performance for lower
versions (excluding IE6 and lower, for which I use a virtual machine),
believing that the /exact same experience/ can be perfectly emulated.
David says he has seen discrepancies between standalone IE7 and IE8
under IE7 browser mode. Are you saying the same, Alan? Can you provide
test cases, or recollect what kind of discrepancies these were? (or
are you simply saying that compatibility mode does not accurately
reflect any specific version of IE, which I hold to be true?)
I saying that IE7 compatibility mode in IE8 was somewhat wrong and IE7
compatibility mode in IE9 is very wrong. The following test cases are
for IE9 RC. In IE7 compatibility mode, the bugs are not present.
<http://css-class.com/test/bugs/ie/renderingbands.htm>
<http://css-class.com/articles/explorer/floats/escaping-floats-peekaboo.htm>
<http://css-class.com/articles/explorer/sticky/>
<http://css-class.com/test/bugs/ie/recalculatedoffsetbug.htm>
<http://css-class.com/test/bugs/ie/button-ie7-crash4.htm>
<http://css-class.com/test/bugs/ie/flicker-transparent-background-hover2.htm>
<http://css-class.com/test/bugs/ie/ie7-font-size-bug-with-ems.htm>
<http://css-class.com/test/bugs/ie/strangepeekaboobug.htm>
Regarding the rendering band bugs. Below is a link for the safe sizes
for alpha transparency images that one can use to avoid a CPU surging to
100%.
<http://css-class.com/test/bugs/ie/renderingbands-image-size.htm>
I would please appreciate a check of the above test case in the the
latest version of IE9 since I have IE9 RC.
--
Alan http://css-class.com/
Armies Cannot Stop An Idea Whose Time Has Come. - Victor Hugo
______________________________________________________________________
css-discuss [[email protected]]
http://www.css-discuss.org/mailman/listinfo/css-d
List wiki/FAQ -- http://css-discuss.incutio.com/
List policies -- http://css-discuss.org/policies.html
Supported by evolt.org -- http://www.evolt.org/help_support_evolt/
