{"action":"created","issue":{"url":"https://api.github.com/repos/handsontable/handsontable/issues/1761","labels_url":"https://api.github.com/repos/handsontable/handsontable/issues/1761/labels{/name}","comments_url":"https://api.github.com/repos/handsontable/handsontable/issues/1761/comments","events_url":"https://api.github.com/repos/handsontable/handsontable/issues/1761/events","html_url":"https://github.com/handsontable/handsontable/issues/1761","id":42615856,"number":1761,"title":"Delayed update of fixed/relative elements while scrolling - serious IE/FF issue","user":{"login":"rbtbar","id":6705643,"avatar_url":"https://avatars.githubusercontent.com/u/6705643?v=3","gravatar_id":"","url":"https://api.github.com/users/rbtbar","html_url":"https://github.com/rbtbar","followers_url":"https://api.github.com/users/rbtbar/followers","following_url":"https://api.github.com/users/rbtbar/following{/other_user}","gists_url":"https://api.github.com/users/rbtbar/gists{/gist_id}","starred_url":"https://api.github.com/users/rbtbar/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rbtbar/subscriptions","organizations_url":"https://api.github.com/users/rbtbar/orgs","repos_url":"https://api.github.com/users/rbtbar/repos","events_url":"https://api.github.com/users/rbtbar/events{/privacy}","received_events_url":"https://api.github.com/users/rbtbar/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":4,"created_at":"2014-09-12T10:29:52Z","updated_at":"2015-03-23T10:29:20Z","closed_at":null,"body":"Hello Everybody,\r\n\r\nAs many of you, I'm facing many of these vertical scroll issues... Basically, when using vertical scrollbar in IE or FF I can always see jumping column headers, misaligned rows and misplaced fixed columns. Believe me this makes really bad impression on the users... \r\nFF shows only short-living \"1px\" misalignments, IE is consistently broken and only Chrome is handling the vertical scrolling properly,.\r\n\r\nTechnically, the 'delayed update of a position' problem is clearly visible when the scroll handler is a relatively long running function (more than a couple of ms) and you've got a mixture of fixed/relative elements to be positioned... Unfortunately, HOT is drawing all elements from the scratch inside such a handler, so that it's not suprising that it takes 100-250ms to handle a single scroll event.\r\n\r\nPlease run the [jsfiddle demo][1] on different browsers to see different reactions on vertical scrolling. It takes 1 scroll handler, 1 sleep function and a couple of divs to complete the picture.\r\n\r\n[1]:http://jsfiddle.net/rbtbar/1dudpeox/\r\n\r\nAll I can do now is to suggest to rework the internal structure of elements, so that either *wthider* is also 'fixed' (thus immune to the scrollbar position) or scrollbars are decoupled from the content and sit in a different branch of the DOM.\r\n\r\nBest Regards,\r\nRobert"},"comment":{"url":"https://api.github.com/repos/handsontable/handsontable/issues/comments/84936333","html_url":"https://github.com/handsontable/handsontable/issues/1761#issuecomment-84936333","issue_url":"https://api.github.com/repos/handsontable/handsontable/issues/1761","id":84936333,"user":{"login":"AMBudnik","id":10757813,"avatar_url":"https://avatars.githubusercontent.com/u/10757813?v=3","gravatar_id":"","url":"https://api.github.com/users/AMBudnik","html_url":"https://github.com/AMBudnik","followers_url":"https://api.github.com/users/AMBudnik/followers","following_url":"https://api.github.com/users/AMBudnik/following{/other_user}","gists_url":"https://api.github.com/users/AMBudnik/gists{/gist_id}","starred_url":"https://api.github.com/users/AMBudnik/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/AMBudnik/subscriptions","organizations_url":"https://api.github.com/users/AMBudnik/orgs","repos_url":"https://api.github.com/users/AMBudnik/repos","events_url":"https://api.github.com/users/AMBudnik/events{/privacy}","received_events_url":"https://api.github.com/users/AMBudnik/received_events","type":"User","site_admin":false},"created_at":"2015-03-23T10:29:20Z","updated_at":"2015-03-23T10:29:20Z","body":"Related to https://github.com/handsontable/handsontable/issues/1962"}}