Fix header append

openaddresses · Nov 6, 2023 · 87a23db · 87a23db
1 parent 872e71d
commit 87a23db
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Showing 4 changed files with 6 additions and 4 deletions.
diff --git a/dist/cli.js b/dist/cli.js
diff --git a/dist/lib/fetch.js b/dist/lib/fetch.js
diff --git a/dist/lib/fetch.js.map b/dist/lib/fetch.js.map
diff --git a/lib/fetch.ts b/lib/fetch.ts
@@ -22,7 +22,8 @@ export default async function Fetch(
 
     url.searchParams.append('f', 'json');
 
-    if (opts.headers) Object.assign(opts.headers, config.headers);
+    if (!opts.headers) opts.headers = {};
+    Object.assign(opts.headers, config.headers);
 
     const headers: HeadersInit = new Headers();
     headers.set('Accept-Encoding', 'gzip');