Source Manifest.json {"update_url": "https://clients2.google.com/service/update2/crx", "manifest_version": 2, "name": "tic-tac-toe", "description": "__MSG_appDesc__", "default_locale": "ja", "version": "1.1", "app": { "urls": [ "http://shojisworks.com/apps/tic-tac-toe/" ], "launch": { "web_url": "http://shojisworks.com/apps/tic-tac-toe/" } }, "icons": { "128": "icon128.png" }, "permissions": [ ]} Read more