{"action":"created","issue":{"url":"https://api.github.com/repos/Polymer/polymer/issues/1548","labels_url":"https://api.github.com/repos/Polymer/polymer/issues/1548/labels{/name}","comments_url":"https://api.github.com/repos/Polymer/polymer/issues/1548/comments","events_url":"https://api.github.com/repos/Polymer/polymer/issues/1548/events","html_url":"https://github.com/Polymer/polymer/issues/1548","id":76903274,"number":1548,"title":"[0.9] hidden$=\"{{isHidden}}\" vs hidden=$\"{{isHidden}}\"","user":{"login":"gertcuykens","id":863731,"avatar_url":"https://avatars.githubusercontent.com/u/863731?v=3","gravatar_id":"","url":"https://api.github.com/users/gertcuykens","html_url":"https://github.com/gertcuykens","followers_url":"https://api.github.com/users/gertcuykens/followers","following_url":"https://api.github.com/users/gertcuykens/following{/other_user}","gists_url":"https://api.github.com/users/gertcuykens/gists{/gist_id}","starred_url":"https://api.github.com/users/gertcuykens/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gertcuykens/subscriptions","organizations_url":"https://api.github.com/users/gertcuykens/orgs","repos_url":"https://api.github.com/users/gertcuykens/repos","events_url":"https://api.github.com/users/gertcuykens/events{/privacy}","received_events_url":"https://api.github.com/users/gertcuykens/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":3,"created_at":"2015-05-16T00:31:57Z","updated_at":"2015-05-21T22:16:18Z","closed_at":"2015-05-21T22:16:18Z","body":"The second one is much more easier and faster to read for humans, is it technically possible or are we talking html violation here?\r\n\r\nhidden$=\"{{isHidden}}\" \r\nhidden=$\"{{isHidden}}\"  "},"comment":{"url":"https://api.github.com/repos/Polymer/polymer/issues/comments/104437970","html_url":"https://github.com/Polymer/polymer/issues/1548#issuecomment-104437970","issue_url":"https://api.github.com/repos/Polymer/polymer/issues/1548","id":104437970,"user":{"login":"kevinpschaaf","id":1354932,"avatar_url":"https://avatars.githubusercontent.com/u/1354932?v=3","gravatar_id":"","url":"https://api.github.com/users/kevinpschaaf","html_url":"https://github.com/kevinpschaaf","followers_url":"https://api.github.com/users/kevinpschaaf/followers","following_url":"https://api.github.com/users/kevinpschaaf/following{/other_user}","gists_url":"https://api.github.com/users/kevinpschaaf/gists{/gist_id}","starred_url":"https://api.github.com/users/kevinpschaaf/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/kevinpschaaf/subscriptions","organizations_url":"https://api.github.com/users/kevinpschaaf/orgs","repos_url":"https://api.github.com/users/kevinpschaaf/repos","events_url":"https://api.github.com/users/kevinpschaaf/events{/privacy}","received_events_url":"https://api.github.com/users/kevinpschaaf/received_events","type":"User","site_admin":false},"created_at":"2015-05-21T22:16:18Z","updated_at":"2015-05-21T22:16:18Z","body":"The only reason we use this syntax is because IE validates and will excise any invalid attribute content (like `{{`) for certain attributes like `href` and `style` before Polymer ever gets to see it.  Using <attribute-name>$=\"...\" is a workaround, since the attribute name becomes `href$` and is thus not validated.  It is an ergonomic compromise for cross-platform capability."}}