Use explicit boolean comparison

diff --git a/src/xterm.js b/src/xterm.js
index c0308b4045a136d4a35718ed2cbbe12acbd0ba1a..16502e20a8b31127798fdd34e2a8ab4dd7e82a6c 100644 (file)
--- a/src/xterm.js
+++ b/src/xterm.js
@@ -2548,7 +2548,7 @@
      * @param {KeyboardEvent} ev The keydown event to be handled.
      */
     Terminal.prototype.keyDown = function(ev) {
-      if (this.customKeydownHandler && !this.customKeydownHandler(ev)) {
+      if (this.customKeydownHandler && this.customKeydownHandler(ev) === false) {
         return false;
       }
       var self = this;