title: Chrome does not send client certificate, while certificate is valid
body: <p>I am witnessing a weird issue with regards to mutual authentication.
  I have setup mutual authentication on BigIP loadbalancer to accept 2 different CAs.
  This means that we only accept certificates that has been issued by those 2 CAs.</p>
  
  <p>I have tried providing those certificates to LB using OpenSSL and it works fine by this i mean i have 2 certificate, Using IE it works fine as well, FireFox it works fine as well. but when i use chrome, browser asks for certificate but it doesnt send the certificate to the LB, as it has been observed in wiresharks (Picture to follow)</p>
  
  <p>I have access to both certificates, so i extacted the certs and key and used</p>
  
  <pre><code>openssl s_client -connect Host:port -cert "cert.pem" -key "key.pem"
  </code></pre>
  
  <p>It works fine, and i can see connection is ok.</p>
  
  <p>Using same certificates in IE, it works as well.
  Postman works as well.
  FireFox Works as well.</p>
  
  <p>Chrome however it shows certificate length as 0</p>
  
  <p><a href="https://i.stack.imgur.com/Mz7zq.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Mz7zq.png" alt="Chrome Asking for certificate"></a></p>
  
  <p><a href="https://i.stack.imgur.com/NIzUQ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/NIzUQ.png" alt="Chrome not sending certificate"></a></p>
  
  <p>And as you can see same certificate is used by OpenSSL and it is sending.</p>
  
  <p><a href="https://i.stack.imgur.com/j6LQT.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/j6LQT.png" alt="Enter image description here"></a></p>
  
  <p>Any idea what might be the problem?</p>
  
  <p>Update :
  I started chrome with debug and saw this, it seems chrome cannot parse my key or cert.</p>
  
  <p>[14836:18604:0927/172254.921:ERROR:ssl_platform_key_util.cc(70)] Could not parse public key.
  [17536:16164:0927/172255.100:ERROR:ssl_client_socket_impl.cc(941)] handshake failed; returned -1, SSL error code 1, net_error -117</p>