checkbox checked bug

[taila]

since 1.6.3

$('#checkbox').attr("checked", true);

#checkbox is checked.

click #checkbox, then #checkbox is unchecked.

But that #checkbox OnClick Events

var checked = $('#checkbox').attr("checked");

checked == "checked"

[dmethvin]

Use .prop() for getting the dynamic state of a checkbox, or use $('#checkbox')[0].checked.

[dmethvin]

Duplicate of #10278.

[dmethvin]

#10496 is a duplicate of this ticket.