jsdpf-7.js

import jsPDF from 'jspdf'

export default function({data, headers, filename}) {
  const doc = new jsPDF({...})

  {... I cut out previous code for brevity but it belongs here!}

  // NEW CODE
 doc.line(pageMargin, pageMargin + 3.5, liveArea.width , pageMargin + 3.5)
 
 const baseYPosForRows = pageMargin + padding // NEW CODE
 let nextYPos = baseYPosForRows // NEW CODE

  doc.save(filename)
}