search jsonp bug

@@ -86,7 +86,7 @@ exports.suggest4Old = (req, res, next) => {
 
 exports.serachFilterBrands = (req, res, next) => {
     search.getBrands4Filter(Object.assign({}, req.query, {
-        keyword: req.query.query
+        keyword: req.query.query || ''
     })).then(result => {
         let dest = {
             code: 200,

@@ -108,6 +108,11 @@ exports.getBrands4Filter = (params) => {
         nparams.price = nmp.join(',');
     }
 
+    //生成路径包含callback 导致多次调用多个 callback问题
+    if(params && params.callback) {
+        delete params.callback;
+    }
+console.log(JSON.stringify(params));
     return searchApi.getBrands4Filter(Object.assign({}, params, nparams)).then(result => {
 
         let dest = [];