Allow any HTTP methods for public images endpoint. Fix artist covers in Subtracks

server/public/public_endpoints.go

@@ -32,7 +32,7 @@ func (p *Router) routes() http.Handler {
 
 	r.Group(func(r chi.Router) {
 		r.Use(server.URLParamsMiddleware)
-		r.Get("/img/{id}", p.handleImages)
+		r.HandleFunc("/img/{id}", p.handleImages)
 	})
 	return r
 }

server/subsonic/stream.go

@@ -34,7 +34,7 @@ func (api *Router) serveStream(ctx context.Context, w http.ResponseWriter, r *ht
 			w.Header().Set("Content-Length", length)
 		}
 
-		if r.Method == "HEAD" {
+		if r.Method == http.MethodHead {
 			go func() { _, _ = io.Copy(io.Discard, stream) }()
 		} else {
 			c, err := io.Copy(w, stream)