fix

src/index.ts

@@ -68,9 +68,10 @@ export default class PicsourceHeisi
   }
 
   async getRandomUrl() {
-    const list = await this.cache.get('heisiList', 'list');
+    let list = await this.cache.get('heisiList', 'list');
     if (!list || !list.length) {
       await this.fetchPicList();
+      list = await this.cache.get('heisiList', 'list');
     }
     if (!list || !list.length) {
       return;