1 files changed, 7 insertions, 0 deletions

diff --git a/client/src/environments/environment.ts b/client/src/environments/environment.ts
index 5bb6f4b34..1ea483554 100644
--- a/client/src/environments/environment.ts
+++ b/client/src/environments/environment.ts
@@ -2,6 +2,13 @@
 // `ng build --env=prod` then `environment.prod.ts` will be used instead.
 // The list of which env maps to which file can be found in `.angular-cli.json`.
 
+// Reflect.metadata polyfill is only needed in the JIT/dev mode.
+//
+// In order to load these polyfills early enough (before app code), polyfill.ts imports this file to
+// to change the order in the final bundle.
+import 'core-js/es6/reflect'
+import 'core-js/es7/reflect'
+
 export const environment = {
   production: false,
   hmr: false,