diff --git a/web/user_handlers.go b/web/user_handlers.go
index d15b394..41fc05d 100644
--- a/web/user_handlers.go
+++ b/web/user_handlers.go
@@ -8,7 +8,7 @@ import (
 	"github.com/rs/zerolog/log"
 )
 
-var Develop = false
+var Develop = true
 
 type RegisterResponse struct {
 	ID           string
diff --git a/web/web_handlers.go b/web/web_handlers.go
index 80b7744..69d14ac 100644
--- a/web/web_handlers.go
+++ b/web/web_handlers.go
@@ -1,8 +1,10 @@
 package web
 
 import (
+	"mime"
 	"net/http"
 	"path"
+	"path/filepath"
 
 	"github.com/rs/zerolog/log"
 )
@@ -17,7 +19,7 @@ func (web *Web) indexHandler(entryPoint string) func(w http.ResponseWriter, r *h
 				log.Error().Err(err).Msg("Error finding file")
 				w.WriteHeader(http.StatusNotFound)
 			}
-			w.Write(f)
+			write(w, f, p)
 			return
 		}
 		if web.box.HasDir(p) && web.box.Has(path.Join(p, "index.html")) {
@@ -26,12 +28,12 @@ func (web *Web) indexHandler(entryPoint string) func(w http.ResponseWriter, r *h
 				log.Error().Err(err).Msg("Error finding file")
 				w.WriteHeader(http.StatusNotFound)
 			}
-			w.Write(f)
+			write(w, f, p)
 			return
 		}
 
 		if f, err := web.box.Find(p); err != nil {
-			w.Write(f)
+			write(w, f, p)
 			return
 		}
 
@@ -39,3 +41,16 @@ func (web *Web) indexHandler(entryPoint string) func(w http.ResponseWriter, r *h
 	}
 	return fn
 }
+
+func write(w http.ResponseWriter, f []byte, path string) {
+	ctype := mime.TypeByExtension(filepath.Ext(path))
+	log.Debug().Msgf("detected type %s for %s by extension", ctype, path)
+	if ctype == "" {
+		ctype = http.DetectContentType(f)
+		log.Debug().Msgf("detected type %s for %s by content", ctype, path)
+	}
+	if ctype != "" {
+		w.Header().Set("Content-Type", ctype)
+	}
+	w.Write(f)
+}