Header background isn't relative to site baseURL

[alanorth]

If your site is not at the root, then the background doesn't work.

[ethanmad]

I think this can be fixed with an edit at https://github.com/keichi/vienna/blob/master/layouts/partials/header.html#L13.
Let me know if you need help with this.

[alanorth]

That's just the image used in the open graph protocol. I think the problem is a bit further down, in the CSS that sets the background image in the header—the image is always fetched relative to the root.

I tried to make the URL relative to the base URL using {{ .Site.BaseURL }}/images/bg.jpg but Go's template system said that wasn't safe.

For a single post I made it work by specifying the path to the image in the front matter:

image = "../images/bg.jpg"

But this only works on posts (for some reason specifying an "image" in the main config doesn't work there).

[ethanmad]

I'll look into it when I get the chance and see if I can figure it out.
Your first attempt looks right to me, but I'm no expert.