graphql-request@3.7.0.patch

diff --git a/dist/index.js b/dist/index.js
index 7e52a12d28c4d258e9948ed6b58c49317fa5cce4..345f63aea4ba92798e226806e5901cdb070e5a2f 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -93,7 +93,7 @@ var resolveHeaders = function (headers) {
     var oHeaders = {};
     if (headers) {
         if ((typeof Headers !== 'undefined' && headers instanceof Headers) ||
-            headers instanceof CrossFetch.Headers) {
+        (CrossFetch && CrossFetch.Headers && headers instanceof CrossFetch.Headers)) {
             oHeaders = HeadersInstanceToPlainObject(headers);
         }
         else if (Array.isArray(headers)) {