{"action":"closed","issue":{"url":"https://api.github.com/repos/whatwg/html/issues/646","repository_url":"https://api.github.com/repos/whatwg/html","labels_url":"https://api.github.com/repos/whatwg/html/issues/646/labels{/name}","comments_url":"https://api.github.com/repos/whatwg/html/issues/646/comments","events_url":"https://api.github.com/repos/whatwg/html/issues/646/events","html_url":"https://github.com/whatwg/html/issues/646","id":132102600,"number":646,"title":"\"Otherwise, if B is a top-level browsing context...\"","user":{"login":"triple-underscore","id":17120975,"avatar_url":"https://avatars.githubusercontent.com/u/17120975?v=3","gravatar_id":"","url":"https://api.github.com/users/triple-underscore","html_url":"https://github.com/triple-underscore","followers_url":"https://api.github.com/users/triple-underscore/followers","following_url":"https://api.github.com/users/triple-underscore/following{/other_user}","gists_url":"https://api.github.com/users/triple-underscore/gists{/gist_id}","starred_url":"https://api.github.com/users/triple-underscore/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/triple-underscore/subscriptions","organizations_url":"https://api.github.com/users/triple-underscore/orgs","repos_url":"https://api.github.com/users/triple-underscore/repos","events_url":"https://api.github.com/users/triple-underscore/events{/privacy}","received_events_url":"https://api.github.com/users/triple-underscore/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/whatwg/html/labels/clarification","name":"clarification","color":"fef2c0"}],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":3,"created_at":"2016-02-08T10:20:24Z","updated_at":"2016-02-08T12:14:42Z","closed_at":"2016-02-08T12:14:42Z","body":"https://html.spec.whatwg.org/multipage/browsers.html#security-1\r\n\r\n> Otherwise, if B is a top\\-level browsing context, and is one of the ancestor browsing contexts of A, and A's node document's active sandboxing flag set has its sandboxed top\\-level navigation browsing context flag set, then abort these steps negatively\\.\r\n> \r\n\r\nThe term \"node document\" is not defined for browsing contexts.\r\nOr, does it mean that\r\nA is nested through some element X, and \r\n\"A's node document's active sandboxing flag set \" \r\nis actually meaning\r\n\"X's node document's active sandboxing flag set \" ?"}}