Merge pull request #3613 from swagger-api/bug/3586-promise-polyfill-s…

…pecies-test Only polyfill `Promise` if it doesn't exist at all
swagger-api · Aug 25, 2017 · e37d4a5 · e37d4a5
2 parents f5df9ff + db4aa95
commit e37d4a5
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/polyfills.js b/src/polyfills.js
@@ -1,2 +1,5 @@
 // Promise global, Used ( at least ) by 'whatwg-fetch'. And required by IE 11
-require("core-js/fn/promise")
+
+if(!window.Promise) {
+  require("core-js/fn/promise")
+}