Created attachment 34990 [details] Apache 2.4.25 trace files with proxy-html enabled and disabled Hi, We're upgrading a site from Apache 2.2 and just found that version 2.4 seems to ignore the ProxyHTMLCharsetOut directive. Our setup: * Fronted: SSL site on Apache 2.4.25. Output charset should be ISO-8859-1 * Backend: non-SSL site on Tomcat 8.5.6. Output charset is ISO-8859-1 Whenever we set: SetOutputFilter proxy-html ProxyHTMLCharsetOut ISO-8859-1 the output charset is always UTF-8; if SetOutputFilter is commented out, then the output charset is ISO-8859-1 as expected. This used to work fine on version 2.2. Wrong behaviour was first found on Debian 8 builtin package (version 2.4.10), but it's also happening on version 2.4.25 (downloaded as source and built with debian/rules makefile). We've tried playing with xml2EncDefault, ProxyHTMLMeta, AddDefaultCharset and even mod_charset_lite with no result. Trace files (error.log) with mod-proxy enabled and disabled are attached. Thank you in advance. Best regards,
I've just investigated this. There is a buglet: a HEAD request will incorrectly show UTF-8. However, a request that returns data works just fine for me. I'm inclined to say WONTFIX, but now that you've pointed it out I'll add a note to the docs. Your problem is configuration. Instead of "SetOutputFilter", you need to use ProxyHTMLEnable On (and have mod_xml2enc loaded) to cause mod_proxy_html to configure i18n. I think that highlights a docs bug, and I'm thinking about how to add that prominently.