From a253c468f60e3b1d3e5c19f31ce99134963ee8e9 Mon Sep 17 00:00:00 2001
From: Gerben Oolbekkink <g.j.w.oolbekkink@gmail.com>
Date: Fri, 22 Jan 2021 20:52:56 +0100
Subject: [PATCH] Fix jakubkowalczyk-pl/jgallery#81, explicitely return null in
 Promise

---
 src/utils/cancellable-promise.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/utils/cancellable-promise.ts b/src/utils/cancellable-promise.ts
index 7004452..696a017 100644
--- a/src/utils/cancellable-promise.ts
+++ b/src/utils/cancellable-promise.ts
@@ -20,10 +20,10 @@ const cancellablePromise = <T>(executor: Executor<T>): CancellablePromise<T> =>
     const cancelListeners: Array<() => any> = [];
     let cancel: () => any;
     const onCancel = (listener: () => any) => cancelListeners.push(listener);
-    const promise: CancellablePromise<T> = new Promise((resolve, reject) => {
+    const promise: CancellablePromise<T> = new Promise<T>((resolve, reject) => {
         executor(resolve, reject, onCancel);
         cancel = () => {
-            resolve();
+            resolve(null);
             cancelListeners.forEach(fn => fn());
         };
     });