diff --git a/public/react/src/App.js b/public/react/src/App.js
index 193b53e03..e8184b7f2 100644
--- a/public/react/src/App.js
+++ b/public/react/src/App.js
@@ -287,7 +287,7 @@ class App extends Component {
 			const url = '/wechats/js_sdk_signature.json'
 			const currentUrl = window.location.href.split('#')[0]
 			axios.post(url, {
-				url: window.encodeURIComponent(currentUrl),
+				url: window.__testUrl || window.encodeURIComponent(currentUrl),
 			}).then((response) => {
 				console.log('got res')
 				const data = response.data;