html2canvas-jspdf 生成pdf显示不全

Question

     html2canvas(element).then(canvas => {
        const imgWidth = 595.28;
        const imgHeight = 592.28/canvas.width * canvas.height;
        const pdf = new jsPDF('', 'pt', 'a4'); // A4 size page of PDF

        const contentDataURL = canvas.toDataURL('image/jpeg',1.0);
        pdf.addImage(contentDataURL, 'JPEG', 0, 0, imgWidth, imgHeight);
        pdf.save(Date.now()+'.pdf');
    });
    
    
    
    
    

html2canvas-jspdf 生成pdf显示不全? 没有用到css
这是怎么回事？