Table returns null

How to?
#1

Describe the problem.
Webpage has
tags in header causing Null values, I assume

[{"header":"Reference Number","name":"Reference\n Number","extract":true},{"header":"Part\n Number","name":"Part\n Number","extract":true},{"header":"Description","name":"Description","extract":true},{"header":"Retail Price","name":"Retail Price","extract":true},{"header":"Stock\n Qty","name":"Stock\n Qty","extract":true},{"header":"Add\n Quantity","name":"Add\n Quantity","extract":true}],"delay":0,"tableDataRowSelector":"tr:nth-of-type(n+2)","tableHeaderRowSelector":"tr.header"}]}

Reference
Number
#2 
        tr class="header"
            
                thReference<br /
                    Number
                /th