diff --git a/app/javascript/packs/application.js b/app/javascript/packs/application.js
index 06f47b6b0..ea5b9f8f7 100644
--- a/app/javascript/packs/application.js
+++ b/app/javascript/packs/application.js
@@ -3,7 +3,9 @@ import main from '../mastodon/main';
 if (!window.Intl || !Object.assign || !Number.isNaN ||
     !window.Symbol || !Array.prototype.includes) {
   // load polyfills dynamically
-  import('../mastodon/polyfills').then(main);
+  import('../mastodon/polyfills').then(main).catch(e => {
+    console.error(e) // eslint-disable-line no-console
+  });
 } else {
   main();
 }