1 files changed, 13 insertions, 0 deletions
diff --git a/packages/megalodon/src/cancel.ts b/packages/megalodon/src/cancel.ts
new file mode 100644
index 0000000000..f8e4729b8e
--- /dev/null
+++ b/packages/megalodon/src/cancel.ts
@@ -0,0 +1,13 @@
+export class RequestCanceledError extends Error {
+	public isCancel: boolean;
+
+	constructor(msg: string) {
+		super(msg);
+		this.isCancel = true;
+		Object.setPrototypeOf(this, RequestCanceledError);
+	}
+}
+
+export const isCancel = (value: any): boolean => {
+	return value && value.isCancel;
+};