When you embed Thinfinity® Remote Desktop Server into a website you need an SSL certificate. Otherwise if the browser can not verify the configured certificate authenticity, your integration won't work.
Using your own certificate
If you already have your own certificate or will get one from a Certificate Authority (CA), all you have to do is configure the certificate as described in the "A CA Certificate" section.
If this option doesn't work for you, disable the SSL certificate, setting the "protocol" property to "HTTP:". Find out how to do it on the connect method subsection.