fix

@@ -77,7 +77,7 @@ exports.index = (req, res, next) => {
  */
 exports.tags = (req, res, next) => {
 
-    let query = req.query.query = escape(req.query.query);
+    let query = req.query.query = (req.query.query || '').replace(/<|>/ig, '');
     let page = req.query.page || 1;
     let pageSize = req.query.pageSize || 20;
     let type = req.query.type || 0;