Apache :: Charset ISO-8859-1 not supported. Consider aliasing it

MHuynh · Joined: 27 Jan 2012 Posts: 3 Location: Houston, TX

Hi,

I just got assigned to this project (not by choice, it means that I don't have much experience Embarassed

Set up Apache reverse proxy server to allow Internet users to access corporate internal private website.

I set up the test environment in the lab, so far it is working as I expected (in my level, not as an Apache expert). All links are working, if I changed the stylesheet, it replected the change, all the characters displayed correctly....

The environment:
Server Windows 2003, IIS website, IE6
Apache httpd-2.2.21-win32-x86-openssl-0.9.8r, mod_proxy_html-3.1.2-win32, libxml2-2.7.8.win32.

To reproduce the error, I created a very simple Webpage with external CSS:

Default.html---------
<!DOCTYPE html PUBLIC "-//W3C//DTD Xhtml 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8"/>
<title>Apache Test</title>
<link href="index.css" rel="stylesheet" type="text/css" />
</head>
<body>
<h1>This is heading 1</h1>
This is an ordinary paragraph. Notice that this text is red. The default text-color for a page is defined in the body selector.
This is a paragraph with class="ex". This text is blue.
激光, 這兩個字是甚麼意思
θ
θ
</body>
</html>

Index.css----------
@charset "UTF-8";
font-family: Arial, sans-serif;
body {color:black;}
h1 {color:Red;}
p.ex {color:rgb(0,0,255);}

httpd.config-------------
...........
LoadFile D:/Apache/Apache2.2/bin/iconv.dll
LoadFile D:/Apache/Apache2.2/bin/zlib1.dll
LoadFile D:/Apache/Apache2.2/bin/libxml2.dll
LoadModule xml2enc_module modules/mod_xml2enc.so
LoadModule proxy_html_module modules/mod_proxy_html.so

<VirtualHost *:80>
DocumentRoot "C:/Inetpub/wwwroot"
<Directory "C:/Inetpub/wwwroot">
#Options None
Options +FollowSymLinks
Options All
RewriteEngine On
RewriteCond %{REQUEST_URI} !www.apachetest.com [NC]
RewriteRule ^$ root [QSA,L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-l
RewriteCond %{REQUEST_URI} !(.*)/$
RewriteRule (.+) http://%{HTTP_HOST}/$1/ [R=301,L]
AllowOverride None
Order allow,deny
Allow from all
</Directory>

RewriteEngine On
RewriteMap lc int:tolower
RewriteCond %{REQUEST_URI} [A-Z]
RewriteRule (.*) ${lc:$1} [R=301,L]

ServerName gw3mhuynh.test.hougwlabaccts.lab.com
ServerAdmin admin@test.hougwlabaccts.lab.com
CustomLog "|D:/Apache/Apache2.2/bin/rotatelogs.exe D:/Apache/Apache2.2/logs/site1/access_%Y_%m_%d.log 86400" combinedio
</Virtualhost>

<Proxy *>
Order deny,allow
Allow from All
</Proxy>

ProxyHTMLLogVerbose On
LogLevel Debug
ProxyHTMLEnable On
ProxyHTMLExtended On
ProxyHTMLMeta On
ProxyHTMLStripComments Off 60

ProxyRequests Off
ProxyPreserveHost On
ProxyPass /test/ http://DL580G1.test.hougwlabaccts.lab.com/apache/test/
ProxyHTMLURLMap http://DL580G1.test.hougwlabaccts.lab.com /test

<Location /test/>
ProxyPassReverse /
ProxyHTMLEnable On
SetOutputFilter proxy-html
ProxyHTMLURLMap / /test/
RequestHeader unset Accept-Encoding
</Location>

Error.log--------------------
Starting the Apache2.2 service
The Apache2.2 service is running.
worker http://dl580g1.test.hougwlabaccts.lab.com/ already used by another worker
Fri Jan 27 14:00:06 2012] [warn] pid file D:/Apache/Apache2.2/logs/httpd.pid overwritten -- Unclean shutdown of previous Apache run?
[Fri Jan 27 14:00:07 2012] [notice] Apache/2.2.21 (Win32) proxy_html/3.1.2 configured -- resuming normal operations
[Fri Jan 27 14:00:07 2012] [notice] Server built: Sep 16 2011 12:06:30
[Fri Jan 27 14:00:07 2012] [notice] Parent: Created child process 3332
[Fri Jan 27 14:00:07 2012] [debug] mpm_winnt.c(477): Parent: Sent the scoreboard to the child
Fri Jan 27 14:00:07 2012] [notice] Child 3332: Child process is running
[Fri Jan 27 14:00:07 2012] [info] Parent: Duplicating socket 1288 and sending it to child process 3332
[Fri Jan 27 14:00:07 2012] [info] Parent: Duplicating socket 1280 and sending it to child process 3332
[Fri Jan 27 14:00:07 2012] [debug] mpm_winnt.c(595): Parent: Sent 2 listeners to child 3332
[Fri Jan 27 14:00:07 2012] [debug] mpm_winnt.c(398): Child 3332: Retrieved our scoreboard from the parent.
[Fri Jan 27 14:00:07 2012] [debug] mpm_winnt.c(554): Child 3332: retrieved 2 listeners from parent
[Fri Jan 27 14:00:07 2012] [debug] proxy_util.c(1818): proxy: grabbed scoreboard slot 0 in child 3332 for worker http://dl580g1.test.hougwlabaccts.lab.com/
[Fri Jan 27 14:00:07 2012] [debug] proxy_util.c(1914): proxy: initialized worker 0 in child 3332 for (dl580g1.test.hougwlabaccts.lab.com) min=0 max=64 smax=64
[Fri Jan 27 14:00:07 2012] [debug] proxy_util.c(1818): proxy: grabbed scoreboard slot 1 in child 3332 for worker proxy:reverse
[Fri Jan 27 14:00:07 2012] [debug] proxy_util.c(1914): proxy: initialized worker 1 in child 3332 for (*) min=0 max=64 smax=64
[Fri Jan 27 14:00:07 2012] [notice] Child 3332: Acquired the start mutex.
[Fri Jan 27 14:00:07 2012] [notice] Child 3332: Starting 64 worker threads.
[Fri Jan 27 14:00:07 2012] [notice] Child 3332: Starting thread to listen on port 8080.
[Fri Jan 27 14:00:07 2012] [notice] Child 3332: Starting thread to listen on port 80.
[Fri Jan 27 14:00:21 2012] [error] [client 127.0.0.1] Charset ISO-8859-1 not supported. Consider aliasing it?, referer: http://www.apachetest.com/test/
[Fri Jan 27 14:00:21 2012] [warn] [client 127.0.0.1] No usable charset information; using configuration default, referer: http://www.apachetest.com/test/

What I want to do is get rid of the error "Charset ISO-8859-1 not supported. Consider aliasing it" and "No usable charset information; using configuration default".

I hope someone can help me and tell me what I did wrong and forgive me if I waste your time.

Thanks and best regards.
MHuynh.

James Blond

How did you solve the problem?

MHuynh · Joined: 27 Jan 2012 Posts: 3 Location: Houston, TX

Sorry....
Not yet, I have not had time to work on that yet.

Thank and best regards.

James Blond

Well that can be done with

ProxyHTMLCharsetAlias charset alias [alias ...]

See the docs: http://apache.webthing.com/mod_proxy_html30/config.html

Hope that helps

MHuynh · Joined: 27 Jan 2012 Posts: 3 Location: Houston, TX

Hi James,

Sorry, I've been working on another problem.

Look like mod_proxy_html-3.1.2 is no longer support
ProxyHTMLCharsetAlias, it is handled by mod_xml2enc.so.

Thank and best regards.