diff --git a/src/net/http/roundtrip_js.go b/src/net/http/roundtrip_js.go
index 04c241eb4c0..7ae94617bcf 100644
--- a/src/net/http/roundtrip_js.go
+++ b/src/net/http/roundtrip_js.go
@@ -236,6 +236,14 @@ func (t *Transport) RoundTrip(req *Request) (*Response, error) {
 		if !ac.IsUndefined() {
 			// Abort the Fetch request.
 			ac.Call("abort")
+
+			// Wait for fetch promise to be rejected prior to exiting. See
+			// https://github.com/golang/go/issues/57098 for more details.
+			select {
+			case resp := <-respCh:
+				resp.Body.Close()
+			case <-errCh:
+			}
 		}
 		return nil, req.Context().Err()
 	case resp := <-respCh: