fix: safely check for search parameter in route query before deletion

Author: sy-records

src/core/router/history/base.js

@@ -82,7 +82,7 @@ export class History {
     const local = currentRoute && path[0] === '#';
     const route = this.parse(replaceSlug(path));
 
-    if (route.query.s) {
+    if (route?.query?.s) {
       delete route.query.s;
     }