[从html Angular7生成pdf

Question

我在从我的页面生成pdf时遇到了问题。我正在使用jspdf和html2canvas，但生成的pdf是白页。请帮助我

HTML：

<mat-card>
    <table id="contentToConvert">
      <tr>
        <th>Column1</th>
        <th>Column2</th>
        <th>Column3</th>
      </tr>
      <tr>
        <td>Row 1</td>
        <td>Row 1</td>
        <td>Row 1</td>
      </tr>
      <tr>
        <td>Row 2</td>
        <td>Row 2</td>
        <td>Row 2</td>
      </tr>
      <tr>

    </table>

  </mat-card>

Component.ts：

import * as jspdf from 'jspdf';
import html2canvas from 'html2canvas';
.
.
.
 public captureScreen() {
var data = document.getElementById('contentToConvert');
html2canvas(data).then(canvas => {

  var imgWidth = 208;
  var pageHeight = 295;
  var imgHeight = canvas.height * imgWidth / canvas.width;
  var heightLeft = imgHeight;

  const contentDataURL = canvas.toDataURL('image/png')
  let pdf = new jspdf('p', 'mm', 'a2'); // A4 size page of PDF  
  var position = 0;
  pdf.addImage(contentDataURL, 'PNG', 0, position, imgWidth, imgHeight)
  pdf.save('MYPdf.pdf'); // Generated PDF   
});}

预先感谢。菲利波

Answer 1

@ Prashant Pimpale，我发布了从浏览器中看到的内容：