なんかもうめっちゃ変えた

src/web/app/common/scripts/check-for-update.ts

@@ -0,0 +1,16 @@
+import CONFIG from './config';
+
+declare var VERSION: string;
+
+export default function() {
+	fetch(CONFIG.apiUrl + '/meta', {
+		method: 'POST'
+	}).then(res => {
+		res.json().then(meta => {
+			if (meta.version != VERSION) {
+				localStorage.setItem('should-refresh', 'true');
+				alert('%i18n:common.update-available%'.replace('{newer}', meta.version).replace('{current}', VERSION));
+			}
+		});
+	});
+}