How do you use client certificates when making an HTTPS call from node.js with Apigee Edge

[dave_pickard]

Following the examples I've written my js code and running on my laptop it works fine - HTTPS call is made using client certificate authentication. Running on Apigee though I can't get it working - it just fails with the following exception: "io.apigee.trireme.core.internal.CryptoException: Input data does not contain a key pair".

Below is the options I'm passing to https.request():

    var options = {
        hostname : www.myhost.com,
        port : 443,
        path: '/service/url',
        key: fs.readFileSync(__dirname + '/certs/APIGEE-client-privkey.pem', 'utf-8'),
        passphrase: 'password',
        cert: fs.readFileSync(__dirname + '/certs/APIGEE-client.cer', 'utf-8'),
        method: 'POST',
        rejectUnauthorized: false,
        headers: {
            'Content-Type': 'application/xml',
            'Content-Length': requestData.length
        }
    };

Presumably running in Apigee edge is using a different Crypto library. Does anybody have this working - if so how do you read in the files so they will be accepted?

Thanks