From b632f2b0ca1ad3c7a98035775d7f5b1e1f3145b6 Mon Sep 17 00:00:00 2001
From: Ka-wai Wong <wong.kwd@gmail.com>
Date: Wed, 23 Jan 2019 11:31:24 -0800
Subject: [PATCH] Update src/devtools/index.js

Co-Authored-By: cn894 <c.naoto.at@outlook.com>
---
 src/devtools/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/devtools/index.js b/src/devtools/index.js
index f9177bd..2e51aae 100644
--- a/src/devtools/index.js
+++ b/src/devtools/index.js
@@ -35,7 +35,7 @@ function createPanel () {
  * @param {evalCallback} callback - The callback that handles the response.
  */
 function checkMezzurite (callback) {
-  const expression = `!!window.mezzurite`;
+  const expression = `window.mezzurite != null`;
   chrome.devtools.inspectedWindow.eval(expression, callback);
 }