From 8da9bcc89076aa2b2bc8f405da7060935f7af6a5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pawe=C5=82=20=C5=81aski?= <rayros@users.noreply.github.com>
Date: Mon, 19 Jun 2017 21:30:44 +0200
Subject: [PATCH] fix(@ngtools/webpack): fix error in compiler CLI when
 i18nFormat is undefined. (#6617)

---
 packages/@ngtools/webpack/src/extract_i18n_plugin.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/@ngtools/webpack/src/extract_i18n_plugin.ts b/packages/@ngtools/webpack/src/extract_i18n_plugin.ts
index c3ce93e66946..a91422f46e03 100644
--- a/packages/@ngtools/webpack/src/extract_i18n_plugin.ts
+++ b/packages/@ngtools/webpack/src/extract_i18n_plugin.ts
@@ -175,7 +175,7 @@ export class ExtractI18nPlugin implements Tapable {
           program: this._program,
           host: this._compilerHost,
           angularCompilerOptions: this._angularCompilerOptions,
-          i18nFormat: this._i18nFormat,
+          i18nFormat: this._i18nFormat || '',
           locale: this._locale,
           outFile: this._outFile,