优化返回逻辑

pages/webview/WxPay.vue

@@ -202,7 +202,7 @@ const goBackToWebview = () => {
   }
 
   uni.redirectTo({
-    url: `/pages/webview/index?path=${returnUrl.value}`,
+    url: `/pages/webview/index?path=${finalUrl}`,
   });
 };
 </script>