diff --git a/js/tests/browsers.js b/js/tests/browsers.js
index 665b26a2e3..8adedc68b1 100644
--- a/js/tests/browsers.js
+++ b/js/tests/browsers.js
@@ -74,9 +74,6 @@ const browsers = {
   }
 }
 
-const browsersKeys = Object.keys(browsers)
-
 module.exports = {
-  browsers,
-  browsersKeys
+  browsers
 }
diff --git a/js/tests/karma.conf.js b/js/tests/karma.conf.js
index d85f2441c3..8d29dad635 100644
--- a/js/tests/karma.conf.js
+++ b/js/tests/karma.conf.js
@@ -8,11 +8,7 @@ const { babel } = require('@rollup/plugin-babel')
 const istanbul = require('rollup-plugin-istanbul')
 const { nodeResolve } = require('@rollup/plugin-node-resolve')
 const replace = require('@rollup/plugin-replace')
-
-const {
-  browsers,
-  browsersKeys
-} = require('./browsers')
+const { browsers } = require('./browsers')
 
 const ENV = process.env
 const BROWSERSTACK = Boolean(ENV.BROWSERSTACK)
@@ -115,7 +111,7 @@ if (BROWSERSTACK) {
   }
   plugins.push('karma-browserstack-launcher', 'karma-jasmine-html-reporter')
   conf.customLaunchers = browsers
-  conf.browsers = browsersKeys
+  conf.browsers = Object.keys(browsers)
   reporters.push('BrowserStack', 'kjhtml')
 } else if (JQUERY_TEST) {
   frameworks.push('detectBrowsers')