From 1f9f8ad91140f513a1ee96329e3775ede9480d2d Mon Sep 17 00:00:00 2001
From: Deema Mykhailov <dmytro@mathpix.com>
Date: Wed, 3 Jan 2024 13:24:43 -0500
Subject: [PATCH] Fixes error when XHR has wrapper and returns proper js object
 instead of string

---
 ts/speech_rules/math_map.ts | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/ts/speech_rules/math_map.ts b/ts/speech_rules/math_map.ts
index 9f715b668..116a6765a 100644
--- a/ts/speech_rules/math_map.ts
+++ b/ts/speech_rules/math_map.ts
@@ -165,8 +165,10 @@ function retrieveFiles(locale: string) {
  *
  * @param json The json mappings string.
  */
-function parseMaps(json: string) {
-  const js = JSON.parse(json) as { [key: string]: any[] };
+function parseMaps(json: string | MathMapJson) {
+  const js = (typeof json === 'string') ?
+      JSON.parse(json) as { [key: string]: any[] }
+      : json;
   addMaps(js);
 }