fix: resolve headers when cross fetch is not available in environment (…

…#296)
graffle-js · Aug 2, 2022 · 55b1bf5 · 55b1bf5
1 parent a7ac904
commit 55b1bf5
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/index.ts b/src/index.ts
@@ -53,7 +53,7 @@ const resolveHeaders = (headers: Dom.RequestInit['headers']): Record<string, str
   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)) {