From 2c6a62b12a9bb9d31882ba757f8dcef43def621c Mon Sep 17 00:00:00 2001
From: LaySent <laysent@hotmail.com>
Date: Wed, 20 Sep 2017 15:45:53 +0800
Subject: [PATCH 1/2] fix lint issue

---
 src/core.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core.js b/src/core.js
index caee13d..27d6776 100644
--- a/src/core.js
+++ b/src/core.js
@@ -126,7 +126,7 @@ function printBuffer(buffer, options) {
     }
 
     if (logger.withTrace) {
-      logger.groupCollapsed(`TRACE`);
+      logger.groupCollapsed('TRACE');
       logger.trace();
       logger.groupEnd();
     }

From 2e26dabca564b4151bdabd1942a5d54c268a5c5e Mon Sep 17 00:00:00 2001
From: LaySent <laysent@hotmail.com>
Date: Wed, 20 Sep 2017 15:46:37 +0800
Subject: [PATCH 2/2] fix ie9 console issue

IE 9 does not support console apis when dev tool is not opened.
---
 src/defaults.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/defaults.js b/src/defaults.js
index 0103ae9..5e69eba 100644
--- a/src/defaults.js
+++ b/src/defaults.js
@@ -1,6 +1,6 @@
 export default {
   level: 'log',
-  logger: console,
+  logger: typeof console !== 'undefined' ? console : undefined,
   logErrors: true,
   collapsed: undefined,
   predicate: undefined,