Fixed error handling for forbidden sizes

main.go

@@ -60,6 +60,7 @@ func resizeHandler(w http.ResponseWriter, r *http.Request) {
 		}
 		if forbidden {
 			writeError(w, imgPath, method, "size is not allowed", http.StatusForbidden)
+			return
 		}
 
 		size := strings.Split(args, "x")
@@ -90,6 +91,7 @@ func resizeHandler(w http.ResponseWriter, r *http.Request) {
 			return
 		}
 
+		// Read from response body, convert and write to output buffer
 		img, err := vips.NewImageFromReader(resp.Body)
 		if err != nil {
 			writeError(w, imgPath, method, fmt.Sprintf("%v", err), http.StatusInternalServerError)
@@ -100,28 +102,14 @@ func resizeHandler(w http.ResponseWriter, r *http.Request) {
 			writeError(w, imgPath, method, fmt.Sprintf("%v", err), http.StatusInternalServerError)
 			return
 		}
-		ep := vips.NewDefaultExportParams()
+		ep := vips.NewDefaultExportParams() // default export params are sufficient
 		buf, _, _ := img.Export(ep)
 		_, err = w.Write(buf)
 		if err != nil {
 			writeError(w, imgPath, method, fmt.Sprintf("%v", err), http.StatusInternalServerError)
 			return
 		}
-		
-		// govips returns the output of the image as a []byte object. We don't need
-		// it since we are directly piping it to the ResponseWriter
-		/*_, _, err = vips.NewTransform().
-			Load(resp.Body).
-			ResizeStrategy(vips.ResizeStrategyAuto).
-			Resize(iw, ih).
-			Output(w).
-			Apply()
-
-		if err != nil {
-			writeError(w, imgPath, method, "failed to resize", http.StatusInternalServerError)
-			return
-		}
-		*/
+	
 		
 	case "thumbnail":