diff --git a/src/main.js b/src/main.js
index 29bce406..ce727322 100644
--- a/src/main.js
+++ b/src/main.js
@@ -37,9 +37,6 @@ const mixin = {
     }
 }
 
-var fetchFn = window.fetch;
-window.fetch = function (url, config) { if (!config) { config = {} } if (!config.mode) { config.mode = 'no-cors' } return fetchFn(url, config) }
-
 const app = createApp(App)
 app.use(router)
 app.mixin(mixin)