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Editorial Team
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Asked: 2026-05-28T06:51:23+00:00

I have very strange problem specific to IE (confirmed in v8 and v9). When

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I have very strange problem specific to IE (confirmed in v8 and v9).
When using jquery to determine div height with: 

$('#sys_MainPage').height()

This code returns cca. 260 in Chrome, Firefox and IE (only if I access application using IP address). But, if I access application using server name and IE 8/9, calculated height is 853?

I’m using jquery 1.4.2.

What could be the cause? Is there any proper reason for this weird behaviour?

EDIT:
Problem is caused with different compatibility modes:
Site is accessed using IP address:
Browser mode: IE8
Document mode: IE8 standards

Using server name:
Browser mode: IE8 compat view
Document mode: IE7 standards

I solved this with web.config edit but I still don’t understand why is browser/document mode different depending on entered url?

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1 Answer

  1. Editorial Team

    Your site is switching to compatability mode when it is being viewed from one of these locations.

    You can find a way here Force IE8 *not* to use Compatibility View to force it not to switch. However I would still test this in IE7 and make sure that it is not broken for that.

    Pretty much what you need to specify is this:

    You can override this behavior by using a meta element to specify an X-UA-Compatible http-equiv header, like so: 

    <meta http-equiv="X-UA-Compatible" content="IE=edge" > or 
<meta http-equiv="X-UA-Compatible" content="IE=8" />

    As for why it is broken – we would need to look at the site to do that there are hundreds of reasons why.

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