Feature Request: support custom domains

[maiani]

I have tried to set up a custom domain for a personal GitHub page. It works smoothly but I noticed some SEO problems because of the duplicate content at username.github.io and customdomain.com

The internet suggests the following solution:
add to the head

<meta http-equiv="refresh" content="0; URL=https://customdomain.com/">
<link rel="canonical" href="https://customdomain.com/">

I considered modifying just my fork of the theme, but I am now wondering if there are other places where
the custom domain should be added.

It is also unclear why there are two different parameters for the site URL: baseURL in hugo.yaml and openGraph.url.
Is there any case where they should differ from each other?

Since this may be a common situation, adding an option to the theme to support custom domains may be worth adding.

[BernatBC]

Hi @maiani, sorry for the late response.
I also have a custom domain, and I don't have any problems. I just added my custom domain into hugo.yaml, and followed the guide on github pages.

However, if you really wanted to add the html metadata, you can create a file into your site's layout/partials/header.html, paste the content of this file: https://github.com/hugo-toha/toha/blob/main/layouts/partials/header.html, and add your lines there.

Hope this solves the issue