The project I am developing has several sub-domains for various tasks. If my main project url is
project-user.c9users.io for example, then I need
static.project-user.c9users.io to function.
I have managed to get the sub-domains working ok, but I need to supply SSL certificates for them, as the invalid cert error in the browser is causing me a major headache during testing. I tried to obtain an certificate with certbot/letsencrypt but it is kicking up a fuss.
Is there any way to obtain a valid ssl certificate for sub-domains on my project?