502 proxy Error [error reading from remote server] - ssl

Question

I'm getting an error message with my https site. when I am working with my http site it working fine on APACHE2 on Ubuntu 14.04.
here is my virtual host config for https site
<VirtualHost _default_:443>
SSLProxyEngine On
ProxyRequests Off
ProxyPreserveHost On
RequestHeader set Front-End-Https "On"
servername jenkins.mydomain.com
Proxypass / https://192.168.0.93:8080/ Keepalive=on
ProxypassReverse / https://jenkins.mydomain.com/
SSLEngine on
SSLCertificateFile /etc/apache2/ssl/wildcard.crt
ErrorLog ${APACHE_LOG_DIR}/error.log
CustomLog ${APACHE_LOG_DIR}/access.log combined
</virtualHost>
please tell me where I am doing mistake.

Answer 1

I have solved my issue. I had few mistakes in my virtualhost configurations.
new virtualhost configurations with ssl is below
<VirtualHost *:443>
SSLEngine On
SSLCertificateFile /etc/apache2/ssl/wildcard.crt
ServerAdmin ITSupport#Mydomain.com
ProxyRequests Off
ProxyPreserveHost On
AllowEncodedSlashes NoDecode
<Proxy *>
Order deny,allow
Allow from all
</proxy>
ServerName jenkins.mydomain.com
ProxyPass / http://192.168.0.93:8080/ nocanon
ProxyPassReverse / http://jenkins.mydomain.com/
RequestHeader set X-Forwarded-Proto "https"
RequestHeader set X-Forwarded-Port "443"
</virtualhost>

Answer 2

In your server You just need to change your code from this :
const port = process.env.PORT || 9000
app.listen(port, () => {
console.log(Serve at http://localhost:${port})
})
to this :
app.listen(port, () => {
console.log(Serve at https://your_domain)
})