canonical url

[Arhell]

And it is possible to display canonical url in head?
example:

• main page https://test.com <link rel="canonical" href="https://test.com">
• second https://test.com/second <link rel="canonical" href="https://test.com/second">
  etc

More example for jekyll short code {{ site.url }}{{ page.url }}

[daveaglick]

Sure! If you call IDocument.GetLink(true) (or IExecutionContext.GetLink(document, true)) it'll produce a link to the current document that includes the Host setting.

For example, to add the canonical link to a Razor page or layout you'd write:

<link rel="canonical" href="@Document.GetLink(true)">

It's up to the theme or layout to add this and I've added it to the CleanBlog theme.

[Arhell]

does not come out, writes
[ERRO] Content/PostProcess > RenderPostProcessTemplates > ExecuteIf > Error while executing module MirrorResources in Content/PostProcess: Response status code does not indicate success: 404 (Not Found).

[daveaglick]

How interesting! I mean, crashing probably isn't ideal 🤣 but it's still a little crazy to me the ways in which parts of the system interact sometimes. I suspect what's going on is that the MirrorResources module sees the <link> and is trying to treat it as a resource that can be mirrored since it's an absolute URL (MirrorResources is at least smart enough to avoid relative links). I'll need to add an exception for rel="canonical" since those should never be mirrored. I'll get it in the next release, and I'll try to get that out the door quickly. In the mean time you can try adding a data-no-mirror attribute to the <link> and that should avoid mirroring.

[Arhell]

Can you show an example how I can implement this?
I want to do here https://github.com/dotnet-foundation/website

[daveaglick]

Sure thing - it’ll end up looking like:

<link rel="canonical" href="@Document.GetLink(true)" data-no-mirror>

[Arhell]

Thank you so much!