diff --git a/src/index.ts b/src/index.ts
index e95af13..7d767f9 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -95,7 +95,7 @@ let log;
 			  ctx.response.setHeader('Access-Control-Allow-Credentials', 'true');
 			  ctx.response.setHeader(
 				'Access-Control-Allow-Headers',
-				'Authorization, Depth, Content-Type',
+				'Authorization, Depth, Content-Type, Cache-Control',
 			  );
 			  ctx.response.setHeader(
 				'Access-Control-Allow-Methods',