remove invalid character validation from searchMetadata query

Author: hiagolcm

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+### Removed
+
+- Remove invalid character validation from `searchMetadata` query.
+
 ## [1.88.1] - 2025-10-29
 
 ### Added

node/resolvers/search/index.ts

@@ -536,11 +536,6 @@ export const queries = {
 
   searchMetadata: async (_: any, args: SearchMetadataArgs, ctx: Context) => {
     const queryTerm = args.query
-    if (queryTerm == null || test(/[?&[\]=]/, queryTerm)) {
-      throw new UserInputError(
-        `The query term contains invalid characters. query=${queryTerm}`
-      )
-    }
 
     if (args.selectedFacets) {
       const { maps, queries } = args.selectedFacets.reduce(