diff --git a/.webpack/webpack.base.js b/.webpack/webpack.base.js
index 7d932bd26..d90236144 100644
--- a/.webpack/webpack.base.js
+++ b/.webpack/webpack.base.js
@@ -72,12 +72,17 @@ module.exports = (env, argv, { SRC_DIR, DIST_DIR }) => {
     },
     plugins: [
       new webpack.DefinePlugin({
+        /* Application */
         'process.env.NODE_ENV': JSON.stringify(process.env.NODE_ENV),
         'process.env.DEBUG': JSON.stringify(process.env.DEBUG),
         'process.env.APP_CONFIG': JSON.stringify(process.env.APP_CONFIG || ''),
         'process.env.PUBLIC_URL': JSON.stringify(process.env.PUBLIC_URL || '/'),
         'process.env.VERSION_NUMBER': JSON.stringify(PACKAGE.version || ''),
         'process.env.BUILD_NUM': JSON.stringify(BUILD_NUM),
+        /* i18n */
+        'process.env.USE_LOCIZE': JSON.stringify(process.env.USE_LOCIZE || ''),
+        'process.env.LOCIZE_PROJECTID': JSON.stringify(process.env.LOCIZE_PROJECTID || ''),
+        'process.env.LOCIZE_API_KEY': JSON.stringify(process.env.LOCIZE_API_KEY || ''),
       }),
     ],
     // Fix: https://github.com/webpack-contrib/css-loader/issues/447#issuecomment-285598881
diff --git a/platform/i18n/src/index.js b/platform/i18n/src/index.js
index f8b34fc9f..1ad95d090 100644
--- a/platform/i18n/src/index.js
+++ b/platform/i18n/src/index.js
@@ -29,19 +29,20 @@ function addLocales(newLocales) {
   customDebug(resourceBundle, 'info');
 }
 
-// Note: Developers can add the API key to use the in-context editor.
-// DO NOT commit the API key
-const config = (window.config && window.config.i18n) || {};
-
+/*
+ * Note: Developers can add the API key to use the
+ * in-context editor using environment variables.
+ * (DO NOT commit the API key)
+ */
 const locizeOptions = {
-  projectId: config.LOCIZE_PROJECTID,
-  apiKey: config.LOCIZE_API_KEY,
+  projectId: process.env.LOCIZE_PROJECTID,
+  apiKey: process.env.LOCIZE_API_KEY,
   referenceLng: 'en-US',
   fallbacklng: 'en-US',
 };
 
-const envUseLocize = !!config.USE_LOCIZE;
-const envApiKeyAvailable = !!config.LOCIZE_API_KEY;
+const envUseLocize = !!process.env.USE_LOCIZE;
+const envApiKeyAvailable = !!process.env.LOCIZE_API_KEY;
 const DEFAULT_LANGUAGE = 'en-US';
 
 function initI18n(