Not generating when PDF is more than one page

[sulthan-ahmed]

I'm passing in a html page that will create multiple pages. WKHTML doesn't seem to have a problem when the pdf generated is one page. However, when it is goes beyond that, the app just hangs. Here is my code

generate: (html, destination, tempName) => {
    return new Promise((resolve, reject) => {
      const file = `${destination}/${tempName}`;
      const readStream = fs.createReadStream(html);
      wkhtmltopdf(readStream, (err, stream) => {
        if (err) {
          console.log(`Pdf generation: Failed, something went wrong
            reading the template ${html}, further details here -> ${err}`);
          reject(err);
        } else {
          // on finish ensures that fs is finished writing the file
          stream.pipe(fs.createWriteStream(file)).on('finish',
            () => resolve(file));
          console.log('pdf generated at', file);
        }
      });
    });
  }

Here is a link to the code
https://github.com/UKHomeOffice/modern-slavery/blob/MS-812-PDF-design-v2/apps/pdf/util/pdf-generator.js
Here is the link to the html I am passing
https://github.com/UKHomeOffice/modern-slavery/blob/MS-812-PDF-design-v2/apps/pdf/views/pdf.html

I'd be grateful for your help, thanks in advance