Head row columns are really... Messed up

I’m not sure how else to describe this - the header row, rather than being column based… Just spans the entire table, each column is listed but they’re listed in such a weird way. The head is 4 columns, and the data is 4 columns - I triple checked.

```
    let doc = new jsPDF();
let totalPagesExp = '{total_pages_count_string}';


console.log(header);
console.log(body);

doc.autoTable({
	head: header,
	body: body,
	didDrawPage: function (data) {
		// Header
		doc.setFontSize(16);
		doc.setTextColor(40);
		doc.setFontStyle('normal');
		doc.text("Order: " + orderR, data.settings.margin.left + 15, 22);

		// Footer
		var str = 'Page ' + doc.internal.getNumberOfPages()
		// Total page number plugin only available in jspdf v1.0+
		if (typeof doc.putTotalPages === 'function') {
			str = str + ' of ' + totalPagesExp
		}
		doc.setFontSize(10)

		// jsPDF 1.4+ uses getWidth, <1.4 uses .width
		var pageSize = doc.internal.pageSize
		var pageHeight = pageSize.height ? pageSize.height : pageSize.getHeight()
		doc.text(str, data.settings.margin.left, pageHeight - 10)
	},
	tableWidth: '100%',
	styles: { cellPadding: 0, fontSize: 8, cellWidth: "wrap", minCellWidth: "20" },
	headStyles: { cellPadding: 0, fontSize: 8, cellWidth: "wrap", minCellWidth: "20" },
	columnStyles: { 1: {cellWidth: "100"}, 2: {cellWidth: "150"}, 3: {cellWidth: "100"}, 4: {cellWidth: "100"}, },
	theme: 'plain',
	margin: { top: 30 }
});

// Total page number plugin only available in jspdf v1.0+
if (typeof doc.putTotalPages === 'function') {
	doc.putTotalPages(totalPagesExp)
}

const finished = doc.output()
fs.writeFileSync('./document.pdf', finished, 'binary')

![AcroRd32_2020-07-21_17-37-04](https://user-images.githubusercontent.com/21194906/88114196-f24f0380-cb78-11ea-9dfe-71454e576f53.png)

[ghost]

I’m smart. If you notice, there’s only one [ and one ], I needed two as per the examples. So I just wrapped the head array in []'s and now it works properly.

[ghost]

Even if I just minimize it to the following it still messes up the headers:

doc.autoTable({
		head: ["tests", "124", "Description"],
		body: [["blah", "512", "asldofkaspodfkaposdfkasdf"]]
	});