I am useing twitter bootstrap 3.2.0 and I use some glyphicons they work properly in ff, chrome, and opera but they are not displayed within the Internet Explorer.
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If you are having this problem with a Java application, a solution could be to create a Filter (subclass of javax.servlet.Filter) that prevents those headers to be set in responses from requests to the fonts folder. This seems to work fine for our project. Make sure the filter is configured as one of the first components in your web.xml file. More info here How do delete a HTTP response header?