Doing some testing to make sure that Cloudflare works with the app

internal/api/static.go

@@ -2,6 +2,7 @@ package api
 
 import (
 	"log"
+	"mime"
 	"net/http"
 	"os"
 	"path/filepath"
@@ -9,7 +10,14 @@ import (
 	"time"
 )
 
-// Mount static on the API mux (kept for compatibility; still serves under API port if you want)
+func init() {
+	// Ensure common types are known (some distros are sparse by default)
+	_ = mime.AddExtensionType(".js", "application/javascript; charset=utf-8")
+	_ = mime.AddExtensionType(".css", "text/css; charset=utf-8")
+	_ = mime.AddExtensionType(".html", "text/html; charset=utf-8")
+	_ = mime.AddExtensionType(".map", "application/json; charset=utf-8")
+}
+
 func (s *Server) MountStatic(dir string, baseURL string) {
 	if dir == "" {
 		return
@@ -23,7 +31,6 @@ func (s *Server) MountStatic(dir string, baseURL string) {
 	}
 }
 
-// NEW: serve the same static handler on its own port (frontend).
 func (s *Server) ListenFrontendHTTP(addr, dir, baseURL string) error {
 	if dir == "" || addr == "" {
 		return nil
@@ -48,6 +55,7 @@ func (s *Server) staticHandler(dir, baseURL string) http.Handler {
 	}
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		s.secureHeaders(w)
+
 		up := strings.TrimPrefix(r.URL.Path, baseURL)
 		if up == "" || strings.HasSuffix(r.URL.Path, "/") {
 			up = "index.html"
@@ -57,12 +65,19 @@ func (s *Server) staticHandler(dir, baseURL string) http.Handler {
 			http.NotFound(w, r)
 			return
 		}
+
+		// Serve file if it exists, else SPA-fallback to index.html
 		if st, err := os.Stat(full); err == nil && !st.IsDir() {
+			// Set Content-Type explicitly based on extension
+			if ctype := mime.TypeByExtension(filepath.Ext(full)); ctype != "" {
+				w.Header().Set("Content-Type", ctype)
+			}
 			http.ServeFile(w, r, full)
 			return
 		}
 		fallback := filepath.Join(dir, "index.html")
 		if _, err := os.Stat(fallback); err == nil {
+			w.Header().Set("Content-Type", "text/html; charset=utf-8")
 			http.ServeFile(w, r, fallback)
 			return
 		}