Paths with uppercase letters aren't working

matt · October 22, 2020, 9:00pm

Caddy’s path matcher is case-insensitive:

caddyserver/caddy/blob/b6e96d6f4a55f96ccbb69f112822f0a923942246/modules/caddyhttp/matchers.go#L228

    
      
          // Provision lower-cases the paths in m to ensure case-insensitive matching.
          func (m MatchPath) Provision(_ caddy.Context) error {
          	for i := range m {
          		m[i] = strings.ToLower(m[i])
          	}
          	return nil
          }
          
          
// Match returns true if r matches m.
          func (m MatchPath) Match(r *http.Request) bool {
          	lowerPath := strings.ToLower(r.URL.Path)
          
          
	// see #2917; Windows ignores trailing dots and spaces
          	// when accessing files (sigh), potentially causing a
          	// security risk (cry) if PHP files end up being served
          	// as static files, exposing the source code, instead of
          	// being matched by *.php to be treated as PHP scripts
          	lowerPath = strings.TrimRight(lowerPath, ". ")
          
          
	repl := r.Context().Value(caddy.ReplacerCtxKey).(*caddy.Replacer)

But you can use a regexp matcher for a case-sensitive match: Request matchers (Caddyfile) — Caddy Documentation