ContentType更新

application.go

@@ -301,12 +301,7 @@ func (this *Application) handler(w http.ResponseWriter, req *http.Request) {
 	}
 
 	//设置header
-	mimeStr := Substr(path, strings.LastIndex(path, "."), len(path))
-
-	//类型判断并设置Content-Type
-	if value, ok := mimeMaps[mimeStr]; ok {
-		header.Set("Content-Type", value)
-	}
+	delete(header,"Content-Type")
 	if this.Config.GetInt("debug")!=1{
 		header.Set("Cache-Control", "public")
 	}