I'm working on shortening Xwiki instance URLs (see details in http://odo.lv/Recipes/XwikiShortURLs_en ) and strangely I can't do it for newer Xwiki instance (it works for odo.lv which uses 2.7 version). I found out that HTML is broken, when proxy server rewrites hyperlinks for preduced XHTML (SetOutputFilter proxy-html ProxyHTMLURLMap /xwiki/bin/view/ / direcives in apache2.conf) Then it changes ...<body id="body" class="wiki-xwiki space-Main viewbody hideleft">... to simple ...<body>... element without attributes. Only weakly related thing I found is that could be related is: http://httpd.apache.org/docs/2.2/mod/mod_proxy.html#proxybadheader I suspect it somehow is related on how header is finished and body is started. Can you suggest any ideas? Thanks! Valdis