From 7574f20cf6eb0e4eb10c994be4ffdb4c45a5145e Mon Sep 17 00:00:00 2001
From: Muhammed Thanish <mnmtanish@gmail.com>
Date: Fri, 28 Oct 2016 16:28:36 +0530
Subject: [PATCH] Use a constant key to identify messages

---
 src/index.js | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/src/index.js b/src/index.js
index fb99c7e4d4b7..294e3bc4aa29 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,14 +1,15 @@
 import Channel from '@kadira/storybook-channel';
 import stringify from 'json-stringify-safe';
 
-export default function createChannel({ key }) {
-  const transport = new PostmsgTransport({ key });
+export const KEY = 'storybook-channel';
+
+export default function createChannel() {
+  const transport = new PostmsgTransport();
   return new Channel({ transport });
 }
 
 export class PostmsgTransport {
-  constructor({ key }) {
-    this._key = key;
+  constructor() {
     this._buffer = [];
     this._handler = null;
     window.addEventListener('message', this._handleEvent.bind(this), false);
@@ -26,7 +27,7 @@ export class PostmsgTransport {
         this._buffer.push({ event, resolve, reject });
       });
     }
-    const data = stringify({ key: this._key, event });
+    const data = stringify({ key: KEY, event });
     iframeWindow.postMessage(data, '*');
     return Promise.resolve(null);
   }
@@ -68,7 +69,7 @@ export class PostmsgTransport {
       return null;
     }
     const { key, event } = data;
-    if (key === this._key) {
+    if (key === KEY) {
       this._handler(event);
     }
   }