In Firefox, http shows the old site, https shows the new site

[mindrones]

For some reason Firefox doesn't redirect the http website to https, even after disabling addons, emptying the browser's cache and hard reloading (Chrome is OK) so I get that:

• http://rollupjs.org/repl shows the old REPL,
• http://rollupjs.org/guide shows the old guide,
• https://rollupjs.org/repl shows the new REPL,
• https://rollupjs.org/guide shows the new guide.

Maybe, for those experiencing this, serving the new website on http too would avoid the confusion?

Details

[thecristen]

Possibly related: The website doesn't even work on Firefox (60.0.1).