added string check on name param

js/query_sanitizer.js

@@ -41,6 +41,16 @@ module.exports = query_sanitizer = ( req_query ) => {
         }
     }
 
+    if( query_params.name ){
+
+        let name = query_params.name
+        if( typeof name !== "string" ){
+            response.code = 400
+            response.string = 
+            `name must be a string`
+        }
+    }
+
     let params = Object.assign( base_params, query_params )
 
     return  { params, response }