Phantomjs.org website not served over HTTPS

[ghost]

1. Which version of PhantomJS are you using? Tip: run phantomjs --version.

   N/A

2. What steps will reproduce the problem?

   1. Visit https://phantomjs.org in a reasonably mainstream, up-to-date web browser. This will result in a "certificate error" or similar warning in the browser.

3. Which operating system are you using?

   This is likely to affect all operating systems on which such a web browser can run.

4. Did you use binary PhantomJS or did you compile it from source?

   N/A

5. Please provide any additional information below.

   This is due to phantomjs.org being hosted by GitHub Pages, which does not support HTTPS for custom domains.

[vitallium]

cc @ariya

[ariya]

I'm thinking of moving the site to Firebase (SSL for custom domain, CDN support, HTTP/2, etc).

[stale]

Due to our very limited maintenance capacity, we need to prioritize our development focus on other tasks. Therefore, this issue will be automatically closed (see #15395 for more details). In the future, if we see the need to attend to this issue again, then it will be reopened. Thank you for your contribution!