Improve discussion page near canonical url

[w-4]

Bug Report

Current Behavior
In beta.13 and beta.14, there is a canonical url included in the hmtl document.
For example for https://discuss.flarum.org/d/187-word-association-game/1000
the canonical url is https://discuss.flarum.org/d/187-word-association-game?near=1000

As per #189 (comment) this causes search engines to crawl that URL.

Edit: the redirect works, my link was just broken.

[w-4]

We could do it the way the Discourse does. They also use a postnumber for the URL, but use a page parameter in the canonical url.
As an example:
For the first 20 posts the canonical would be https://discuss.flarum.org/d/187-word-association-game
for the next 20, it would be https://discuss.flarum.org/d/187-word-association-game?page=2

That is probably better for SEO, because of less links and no overlap.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. We do this to keep the amount of open issues to a manageable minimum.
In any case, thanks for taking an interest in this software and contributing by opening the issue in the first place!

[davwheat]

I'm really confused by this. What's the issue here?

Using the /d/1233456/100 syntax could make search engines think it's a totally separate page from /d/123456 causing page duplication.

We should keep that canonical to prevent that, but we should also add rel=next to link to the page before that.

It might be work replacing this canonical with a ?page=x-based one, though, as the ?near=1000 seems to take me to post 950...

[enricoeur]

This is big mistake. Really i dont understand why was not fixed...

[askvortsov1]

I'm really confused by this. What's the issue here?

Using the /d/1233456/100 syntax could make search engines think it's a totally separate page from /d/123456 causing page duplication.

We should keep that canonical to prevent that, but we should also add rel=next to link to the page before that.

It might be work replacing this canonical with a ?page=x-based one, though, as the ?near=1000 seems to take me to post 950...

I like using page=x as the canonical URL. Post numbers can be messy.

I'll also note that the current no-js approach is missing next page / prev page buttons. THAT is quite problematic, and something that definitely needs to be fixed before stable.

[askvortsov1]

When redesigning, we should also make sure to fix #2130

[askvortsov1]

https://github.com/flarum/core/blob/f2168f939db15f58c1511b56b4d95c737b62ce1a/views/frontend/content/discussion.blade.php#L18-L24 is incorrect, because there won't be prev/next links on the API document for a single item. That's what's causing the missing pagination links.