diff --git a/src/app/service/api.service.ts b/src/app/service/api.service.ts
index c0cd5d6..68485a6 100644
--- a/src/app/service/api.service.ts
+++ b/src/app/service/api.service.ts
@@ -61,8 +61,13 @@ export class ApiService {
   }
 
   public checkOnline(): Promise<boolean> {
-    return fetch(this.statUrl).then(resp => {
-      return resp && (resp.ok || resp.type === 'opaque');
+    return new Promise(res => {
+      fetch(this.statUrl).then(resp => {
+        res(resp && (resp.ok || resp.type === 'opaque'));
+      }).catch(e => {
+        console.error('Check Online Error', e);
+        res(false);
+      });
     });
   }