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From Micha Lenk <>
Subject [PATCH] mod_proxy_html deletes wrong data from HTML when meta http-equiv tag specifies Content-Type behind other meta http-equiv tag
Date Wed, 19 Mar 2014 19:40:38 GMT
Hi Apache developers,

over the time I've accumulated some patches for mod_proxy_html which I 
would like to get reviewed, and get applied in SVN (best both, trunk and 
then backported to 2.4). This is something that I feel to owe the Apache 
httpd community.

So, lets first start with a bug that lets mod_proxy_html delete the 
wrong data from HTML code when a "http-equiv" meta tag specifies a 
Content-Type behind any other "http-equiv" meta tag (Thomas, Ewald, this 
is issue #21648 in our Mantis). For better understanding of the issue, 
please consider the following HTML file treated by mod_proxy_html:

   <meta http-equiv="X-Dummy-Header" content="dummy value">
   <style type="text/css">div.ok { color: green; }       </style>
   <meta http-equiv="Content-Type" content="text/html; charset=utf8"      >
   <div class="ok">If the metafix is not broken, this text should get 
rendered in green color.</div>

Without the attached patch, mod_proxy_html will remove the <style> tag 
inside the <head> tag as soon as it parses the meta tag with the 
http-equiv="Content-Type" attribute. With the attached patch applied, 
mod_proxy_html removes the meta tag with the http-equiv="Content-Type" 
attribute instead. I guess this is what the code intended to do.

The attached patch is based on httpd trunk, rev. 1579365.

Please provide feedback whether I should file an issue in Apaches 
Bugzilla or whether this isn't needed in this case.


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