title: Epson TM-T88V-i SSL Certificate issue
body: <p>I have an Epson TM-T88V-i receipt printer which I print to using Epson's E-pos Javascript library. I have been using the following URL to print to the printer which is connected to my local network </p>
  
  <p><code>http://192.168.1.105/cgi-bin/epos/service.cgi?devid=local_printer&amp;timeout=60000</code></p>
  
  <p>This has run fine while my application has been unsecured but I have now installed a certificate on my main domain to secure it from a trusted CA and have been facing the issue that when I print to the secure URL for the printer <code>https://192.168.1.105/cgi-bin/epos/service.cgi?devid=local_printer&amp;timeout=60000</code> it breaks the security of my main domain -  flagging the site is not secure and crossing the HTTPS in red because it is loading content with certificate errors .</p>
  
  <p>When I inspect the self-signed certificate generated by the printer it has the following issues: </p>
  
  <blockquote>
    <p>Certificate - Subject Alternative Name missing The certificate for
    this site does not contain a Subject Alternative Name extension
    containing a domain name or IP address.</p>
  </blockquote>
  
  <hr>
  
  <blockquote>
    <p>Certificate - missing This site is missing a valid, trusted
    certificate (net::ERR_CERT_AUTHORITY_INVALID).</p>
  </blockquote>
  
  <p>I have tried to add the certificate to my trusted certificate Authorities but this hasn't worked.</p>
  
  <p>I have followed Epson's own guide to create a certificate using OpenSSL but I get the same error in my browser.</p>
  
  <p>I have googled the above errors but just can't find a solution that works. Ignoring all Certificate errors is not an option as this is for a live production environment. I have enabled <code>Allow invalid certificates for resources loaded from localhost</code> and this too has not worked. </p>
  
  <p>If I need to purchase certificate I will but don't know if A CA can issue one without a signing request</p>
  
  <p>Any help will be greatly appreciated</p>