Fix an error when using URLSearchParams with fetch (#680)

Fix an error when using URLSearchParams with fetch
zloirock · Oct 29, 2019 · fa5dc92 · fa5dc92
2 parents e3f4c9e + 763b979
commit fa5dc92
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/packages/core-js/modules/web.url-search-params.js b/packages/core-js/modules/web.url-search-params.js
@@ -325,7 +325,7 @@ if (!USE_NATIVE_URL && typeof $fetch == 'function' && typeof Headers == 'functio
         if (isObject(init)) {
           body = init.body;
           if (classof(body) === URL_SEARCH_PARAMS) {
-            headers = new Headers(init.headers);
+            headers = init.headers ? new Headers(init.headers) : new Headers();
             if (!headers.has('content-type')) {
               headers.set('content-type', 'application/x-www-form-urlencoded;charset=UTF-8');
             }