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gaia/apps/system/js/bootstrap.js

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+/* global App */
+
+'use strict';
+(function() {
+  /**
+   * This file should never be changed or add new functionalities.
+   * The responsibility is only start the app instance and catch
+   * the error from the start function.
+   *
+   * The main reason is this file is not test-able so
+   * it should not grow anyway.
+   *
+   * If you have a new module, please find a proper parent
+   * in the dependency tree and put it there.
+   */
+  window.app = new App();
+  var startApp = function() {
+    window.app.start().catch(function(err) {
+      console.error(err);
+      console.trace();
+    });
+  };
+  if (document.readyState !== 'loading') {
+    startApp();
+  } else {
+    document.addEventListener('readystatechange',
+      function readyStateChange() {
+        if (document.readyState == 'interactive') {
+          document.removeEventListener('readystatechange',
+            readyStateChange);
+          startApp();
+        }
+      });
+  }
+}());