From 83f57b9820a4a9cd45d5263b8bf5d49710d5a15f Mon Sep 17 00:00:00 2001
From: Ibby Hadeed <ihadeed@users.noreply.github.com>
Date: Mon, 13 Feb 2017 15:06:33 -0500
Subject: [PATCH] fix(zip): progress callback is optional (#1049)

---
 src/plugins/zip.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/plugins/zip.ts b/src/plugins/zip.ts
index a8b6643ad..8dabc12ba 100644
--- a/src/plugins/zip.ts
+++ b/src/plugins/zip.ts
@@ -35,6 +35,6 @@ export class Zip {
     successIndex: 2,
     errorIndex: 4
   })
-  static unzip(sourceZip: string, destUrl: string, onProgress: Function): Promise<number> {return; }
+  static unzip(sourceZip: string, destUrl: string, onProgress?: Function): Promise<number> {return; }
 
 }