Checkboxes twice times
Checkboxes twice times

Link to test case:
https://jsfiddle.net/bw732eqo/
Description of problem:
You van see in the testcase that the Checkbox "allk05ziel" is twice.
The reason ist the Script in "iNetScriptk01.js":
$.extend($.fn.dataTable.defaults, {
scrollX: true,
});
$('table.display').dataTable();
When i set the last line at the beginning only one Checkbox is shown.
Is that a bug or normal?
Edited by Allan - Syntax highlighting. Details on how to highlight code using markdown can be found in this guide.
Answers
Adding datatables.css resolves the issue:
https://jsfiddle.net/5068p91d/
When using scrolling features Datatables clones the header and hides the original to help facilitate scrolling. Without the CSS you see both the cloned and original.
Kevin