Using colspan&rolspan, an error occured

xtestw

when apply DataTables to the table with a row 'colspan = 7'&'rolspan' below, an Error occured: Uncaught TypeError: Cannot read property 'className' of undefined.
code:

data1	data2	data3	data4	data5		data6	data7	data8
				data11	data12
2	23	3	44	5	32	3	28
2	23	3	44	5	32	3	28
2	23	3	44	5	32	3	28
2	23	3	44	5	32	3	28
2	23	3	44	5	32	3	28

xtestw

sorry for my Careless- -！....code===》http://paste.ubuntu.com/8007164/