'self signed certificate in certificate chain' SELF_SIGNED_CERT_IN_CHAIN

[vahidsamimi]

from today The OAuth getOAuthRequestTokenmethod is not working anymore and I recieve the following error:

code:'SELF_SIGNED_CERT_IN_CHAIN'
message:'self signed certificate in certificate chain'

I used this mothod like this:

consumer = new oauth.OAuth(
    "https://api.twitter.com/oauth/request_token",
    "https://api.twitter.com/oauth/access_token",
    twitter.consumer_key,
    twitter.consumer_secret,
    "1.0A",
    twitterCallBackUrl, // twitterCallBackUrl,
    "HMAC-SHA1"
  );

  consumer.getOAuthRequestToken(function (error, oauthToken, oauthTokenSecret, results) {
    if (error) { // here occurs the error >>> SELF_SIGNED_CERT_IN_CHAIN
      res.send("Error getting OAuth request token : " + inspect(error));  
    } else {
    // get request token
    }

Do you have any suggestions to solve this issue?