title: image not show in header node-html-pdf
body: <p>I am using <a href="https://www.npmjs.com/package/html-pdf" rel="nofollow noreferrer">this</a> to convert the html to PDF . But I cant add image in header . Here is my code :</p>
  
  <p>nodejs :</p>
  
  <pre><code>const options = {
      "format": "A4",
      "base": req.protocol + '://' + req.get('host') ,
  };
  
  pdf.create(fs.readFileSync(outHtml, 'utf8'), options).toFile(outPdf, function (err) {
      ... 
  })
  </code></pre>
  
  <p>html:</p>
  
  <pre><code>&lt;div id="pageHeader-first"&gt;
      &lt;img src="img_path"&gt;
  &lt;/div&gt;
  &lt;div id="pageHeader"&gt;&lt;/div&gt;
  </code></pre>
  
  <p>Where is my wrong ? Please help me </p>
  
  <p><strong>EDIT</strong>
  I tried this code but still not working :</p>
  
  <pre><code>var assetPath = path.join(__dirname,'../public/')
              assetPath = assetPath.replace(new RegExp(/\\/g),'/');
              const options = {
                  "format": "A4",
                  base: "file://"+assetPath,
                  header:{
                    height:"33mm"
                  }
              };
  </code></pre>
  
  <p>html : <code>&lt;img src="images/logo.jpg" style="width:100%" alt=""/&gt;</code></p>