diff --git a/web/app/common/promises.js b/web/app/common/promises.js
index 95885564..5cd91593 100644
--- a/web/app/common/promises.js
+++ b/web/app/common/promises.js
@@ -1,7 +1,5 @@
 import Promise from 'promise-polyfill';
 
-Promise._unhandledRejectionFn = () => {};
-
 Promise.prototype.finally = function finallyFn(callback) {
   const constructor = this.constructor;