Fix (#546)

fix issue #544

docs/README.md

@@ -2102,7 +2102,7 @@ type，必选，目前支持两种，`hot` 代表热门游记，`latest` 代表
 
 #### 全国气象预警
 
-举例: <(https://rsshub.app/weatherAlarm>
+举例: <https://rsshub.app/weatherAlarm>
 
 路由: `/weatherAlarm`
 
@@ -2123,3 +2123,4 @@ type，分类
 | Trending | Most stars | All |
 | -------- | ---------- | --- |
 | trending | starred    | all |
+

middleware/parameter.js

@@ -5,7 +5,7 @@ module.exports = async (ctx, next) => {
     if (ctx.state.data && ctx.query && (ctx.query.filter || ctx.query.filter_title || ctx.query.filter_description)) {
         ctx.state.data.item = ctx.state.data.item.filter((item) => {
             const title = item.title;
-            const description = item.description;
+            const description = item.description || title;
             return !(
                 (ctx.query.filter && !title.match(ctx.query.filter) && !description.match(ctx.query.filter)) ||
                 (ctx.query.filter_title && !title.match(ctx.query.filter_title)) ||