v0.3

docs/WEB_SERVER.md

@@ -44,7 +44,9 @@ An optional bounded Apache-style `.htaccess` compatibility layer supports a **su
 
 A Web Service may enable PHP via a shared PHP-FPM profile or its own configuration. PHP is executed by the FPM service, not RustProxy, and must not be exposed as a raw Internet port. Use dedicated pools for different applications. See [PHP-FPM](PHP_FPM.md).
 
-Vhosts can intercept selected application error bodies in **Pages** and return a configured HTML error page while preserving the status. Internal location `error_fallback` is different: it routes the error to a named internal handler. Error-page replacements are marked uncacheable.
+Missing static files return normal **HTTP 404 Not Found**, unreadable/blocked paths **403 Forbidden**, unsupported static methods **405 Method Not Allowed** (with `Allow: GET, HEAD`), and internal failures **500 Internal Server Error**. Generated response bodies contain only the standard status, not a `RustProxy: Web Server ...` diagnostic. `HEAD` errors have no response body. Internal server errors can be diagnosed through service logs; generated responses are not cacheable by default.
+
+Vhosts can intercept selected application error bodies in **Pages** and return a configured HTML error page while preserving the status. Internal location `error_fallback` is different: it routes the error to a named internal handler. Error-page replacements are marked uncacheable. Origin-supplied and explicitly configured custom error bodies are preserved unless interception is enabled.
 
 ## Monitoring and issues