OCSP check failed against windows blob storage

[howryu]

I am using ocsp 1.2.0 and latest of asn1.js-rfc5280. However, ocsp check failed with error Invalid signauture when checking against azure blob storage(while it succeed for amazons s3). So I am wondering what is wrong, and also, is there anyway to turn on logging to further troubleshooting the issue.

I wrote a simple javascript to reproduce the issue. Note, check failed on windows.net, but succeed for s3 endpoint.

const tls = require('tls');
const ocsp = require('ocsp');
const rfc5280 = require('asn1.js-rfc5280');

const options = {
  host: "2srsfctest1stage000.blob.core.windows.net",
  //host: "s3-eu-west-1.amazonaws.com",
  port: 443
};

const socket = tls.connect(8000, options, function(){
  cert = socket.getPeerCertificate(true);
  var issuer = cert.issuerCertificate;
  cert = cert.raw;
  try {
    cert = rfc5280.Certificate.decode(cert, 'der');

    if (issuer) {
      issuer = issuer.raw;
      issuer = rfc5280.Certificate.decode(issuer, 'der');
    }
  } catch (e) {
    console.log(e);
  }

  ocsp.check({
    cert: cert,
    issuer: issuer
  }, function(err, res){
    if (err)
    {
      console.log(err);
    }

    if (res)
    {
      console.log(res);
    }
  })
});