<webview>, <appview> and <extensionoptions> can run in a detached state.

extensions/renderer/resources/guest_view/app_view.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 var DocumentNatives = requireNative('document_natives');
 var GuestView = require('guestView').GuestView;
 var GuestViewContainer = require('guestViewContainer').GuestViewContainer;
 var IdGenerator = requireNative('id_generator');
 
 function AppViewImpl(appviewElement) {
   GuestViewContainer.call(this, appviewElement, 'appview');
+
+  this.app = '';
+  this.data = '';
 }
 
 AppViewImpl.prototype.__proto__ = GuestViewContainer.prototype;
 
 AppViewImpl.VIEW_TYPE = 'AppView';
 
 // Add extra functionality to |this.element|.
 AppViewImpl.setupElement = function(proto) {
   var apiMethods = [
     'connect'
@@ skipping 10 matching lines @@
     this.errorNode.style.position = 'absolute';
     this.errorNode.style.left = '0px';
     this.errorNode.style.top = '0px';
     this.errorNode.style.width = '100%';
     this.errorNode.style.height = '100%';
     this.element.shadowRoot.appendChild(this.errorNode);
   }
   return this.errorNode;
 };
 
+AppViewImpl.prototype.buildContainerParams = function() {
+  return {
+    'appId': this.app,
+    'data': this.data || {}
+  };
+};
+
 AppViewImpl.prototype.connect = function(app, data, callback) {
   if (!this.elementAttached) {
     if (callback) {
       callback(false);
     }
     return;
   }
-  var createParams = {
-    'appId': app,
-    'data': data || {}
-  };
+
+  this.app = app;
+  this.data = data;
 
   this.guest.destroy();
-  this.guest.create(createParams, function() {
+  this.guest.create(this.buildParams(), function() {
     if (!this.guest.getId()) {
       var errorMsg = 'Unable to connect to app "' + app + '".';
       window.console.warn(errorMsg);
       this.getErrorNode().innerText = errorMsg;
       if (callback) {
         callback(false);
       }
       return;
     }
     this.attachWindow();
     if (callback) {
       callback(true);
     }
   }.bind(this));
 };
 
 GuestViewContainer.registerElement(AppViewImpl);