{"action":"created","issue":{"url":"https://api.github.com/repos/4ae9b8/browserhacks/issues/165","labels_url":"https://api.github.com/repos/4ae9b8/browserhacks/issues/165/labels{/name}","comments_url":"https://api.github.com/repos/4ae9b8/browserhacks/issues/165/comments","events_url":"https://api.github.com/repos/4ae9b8/browserhacks/issues/165/events","html_url":"https://github.com/4ae9b8/browserhacks/issues/165","id":105016568,"number":165,"title":"The \\9 property hack isn't completely reliable","user":{"login":"cvrebert","id":419884,"avatar_url":"https://avatars.githubusercontent.com/u/419884?v=3","gravatar_id":"","url":"https://api.github.com/users/cvrebert","html_url":"https://github.com/cvrebert","followers_url":"https://api.github.com/users/cvrebert/followers","following_url":"https://api.github.com/users/cvrebert/following{/other_user}","gists_url":"https://api.github.com/users/cvrebert/gists{/gist_id}","starred_url":"https://api.github.com/users/cvrebert/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/cvrebert/subscriptions","organizations_url":"https://api.github.com/users/cvrebert/orgs","repos_url":"https://api.github.com/users/cvrebert/repos","events_url":"https://api.github.com/users/cvrebert/events{/privacy}","received_events_url":"https://api.github.com/users/cvrebert/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":5,"created_at":"2015-09-05T09:24:26Z","updated_at":"2015-09-05T11:17:52Z","closed_at":null,"body":"This is in reference to http://browserhacks.com/#hack-ab1bcc7b3a6544c99260f7608f8e845e\r\nTestcase: http://jsfiddle.net/cvrebert/56vjof5b/\r\nIf you open the testcase in IE11, you'll see that the box labeled \"One\" has a top border, indicating that IE11 didn't discard the invalid `border-top: 4px solid\\9;` declaration.\r\nBut the \"Two\" box, whose CSS has a space before the `\\9`, i.e. `border-top: 4px solid \\9;`, does not have a border, so its declaration was properly discarded.\r\nSo perhaps the hack should advise\r\n`.selector { property: value \\9; }`\r\nrather than\r\n`.selector { property: value\\9; }`\r\n?\r\n\r\nRefs https://github.com/twbs/bootstrap/issues/17455"},"comment":{"url":"https://api.github.com/repos/4ae9b8/browserhacks/issues/comments/137944016","html_url":"https://github.com/4ae9b8/browserhacks/issues/165#issuecomment-137944016","issue_url":"https://api.github.com/repos/4ae9b8/browserhacks/issues/165","id":137944016,"user":{"login":"jeffclayton","id":5601103,"avatar_url":"https://avatars.githubusercontent.com/u/5601103?v=3","gravatar_id":"","url":"https://api.github.com/users/jeffclayton","html_url":"https://github.com/jeffclayton","followers_url":"https://api.github.com/users/jeffclayton/followers","following_url":"https://api.github.com/users/jeffclayton/following{/other_user}","gists_url":"https://api.github.com/users/jeffclayton/gists{/gist_id}","starred_url":"https://api.github.com/users/jeffclayton/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jeffclayton/subscriptions","organizations_url":"https://api.github.com/users/jeffclayton/orgs","repos_url":"https://api.github.com/users/jeffclayton/repos","events_url":"https://api.github.com/users/jeffclayton/events{/privacy}","received_events_url":"https://api.github.com/users/jeffclayton/received_events","type":"User","site_admin":false},"created_at":"2015-09-05T11:17:52Z","updated_at":"2015-09-05T11:17:52Z","body":"You are certainly correct in the fact the 'slash hacks' do not affect Edge - it is an entirely different animal than MSIE. Edge picks up some webkit hacks though (a decision by Microsoft) and they also pick up webkit hacks on Windows 10 Mobile. \r\n\r\nThe updated testing I have done over the last couple of years, and testing on IE6-11 and Edge I had not noticed were not updated on the site, so you are correct. (I tested Win10 before the Spartan progect and after as Edge for Windows 10 Preview actually picked up MSIE 11 hacks as well but not the final version which is more streamlined.)"}}