From 36afaafc98708a8c0f3915e0c494fcc94bf65b3e Mon Sep 17 00:00:00 2001
From: gdh1995
Date: Sat, 17 Sep 2016 15:27:39 +0800
Subject: use keyNames to check backspace keyCode

---
 lib/keyboard_utils.coffee | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/lib/keyboard_utils.coffee b/lib/keyboard_utils.coffee
index c5dbd69a..4f8336c7 100644
--- a/lib/keyboard_utils.coffee
+++ b/lib/keyboard_utils.coffee
@@ -4,7 +4,7 @@ KeyboardUtils =
     f12: 123, tab: 9, downArrow: 40, upArrow: 38 }
 
   keyNames:
-    { 37: "left", 38: "up", 39: "right", 40: "down", 32: "space" }
+    { 37: "left", 38: "up", 39: "right", 40: "down", 32: "space", 8: "backspace" }
 
   # This is a mapping of the incorrect keyIdentifiers generated by Webkit on Windows during keydown events to
   # the correct identifiers, which are correctly generated on Mac. We require this mapping to properly handle
@@ -49,8 +49,6 @@ KeyboardUtils =
       event.key.toLowerCase() # F1 to F9.
     else if event.key.length == 3 and "F10" <= event.key <= "F12"
       event.key.toLowerCase() # F10 to F12.
-    else if event.key == "Backspace"
-      event.key.toLowerCase() # Backspace.
     else
       ""
 
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