diff --git a/fetch.js b/fetch.js
index 20209e820d4f186e355a04ab6a6bd2fa2e278408..b251ee398c7105038c93a30abb3934db605b6267 100644
--- a/fetch.js
+++ b/fetch.js
@@ -491,7 +491,7 @@ export function fetch(input, init) {
     xhr.onabort = function() {
       setTimeout(function() {
         reject(new DOMException('Aborted', 'AbortError'))
-      })
+      }, 0)
     }
 
     function fixUrl(url) {