white-space: pre-warp don’t work at Internet Explorer

Today i noticed that our Knowledge Base looks ugly at Internet Explorer. It seems that he ignoring the following CSS attribute:

white-space: pre-warp

After a few test I found out, that by default IE use for intranet page the compatibility mode. OMG…

There are two ways to change this. First you can add a meta attribute the every page:

<meta http-equiv="X-UA-Compatible" content="IE=Edge" />

or you can use the Apache Module mod_headers which is my choise:
1. Change Apache2 Config to load the headers_module

LoadModule headers_module modules/mod_headers.so
  1. Change now the vhost.conf and add the Header
Header set X-UA-Compatible “IE=Edge”
  1. Reload Apache2

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