fix: Only load Promise polyfill if window.Promise is missing [#1468] (#…

…1470)
dequelabs · Apr 4, 2019 · 1d70306 · 1d70306
1 parent b477e0d
commit 1d70306
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/lib/core/imports/index.js b/lib/core/imports/index.js
@@ -10,7 +10,9 @@
  * Polyfill `Promise`
  * Reference: https://www.npmjs.com/package/es6-promise
  */
-require('es6-promise').polyfill();
+if (!('Promise' in window)) {
+	require('es6-promise').polyfill();
+}
 
 /**
  * Namespace `axe.imports` which holds required external dependencies