Re: http header encoding for proxy

> On 21 Oct 2025, at 22:45, Matt Zagrabelny <[email protected]> wrote:
> 
> Greetings Apache Users,
> 
> I'm using apache (2.4.65) to reverse proxy an application being served locally out of port 8096. All has been great for the past 2 or 3 years.
> 
> Things were going well until a recent major upgrade to the application.
> 
> After the upgrade, icons (SVG?) that used to render like:

Does the upgrade have no documentation as to what's changed?
What does Apache's error log say?
Do you have access logs from before the upgrade, to check if the icons were
served by the backend or embedded in the page, and what the successful
requests looked like?

> hamburger menu
> magnifying glass
> etc.
> 
> now render as:
> 
> number 1 with a circumflex on top
> number 1 with a circumflex on top, cents sign, and a pilcrow (backwards paragraph symbol)
> etc.

A traditional suspect for that would be an i18n issue.  Do you have mod_xml2enc loaded?
What charset?

> I can't tell from the devtools what HTML is being used for the icons - maybe a JS library is manipulating the DOM? Not sure.

What happens if you disable JS in your browser (and clear cache)?
If it's JS, you may need to play about with ProxyHTMLExtended to rewrite it.

-- 
Nick Kew