Use something like pjax for hosted docs

[josevalim]

Today we perform full page navigation but we can use something like pjax for navigating across pages as long as they have relative paths. However, we need to be careful to not use pjax when running from the local file system. Note we don't need to use pjax per se, just something similar, to keep the navigation smoother.

[jonatanklosko]

Perhaps the native @view-transition?

@view-transition {
  navigation: auto;
}

Firefox and Safari support is in progress though.

[josevalim]

@jonatanklosko great idea, it feels really smooth. PR here: #1982

[jonatanklosko]

I've just realised that @view-transition is also going to animate #anchor links, which we definitely don't want :<

[josevalim]

@jonatanklosko we can rule out anchors to the same page. I will change it accordingly.

[josevalim]

Unfortunately the view transition won’t work as expected. We should probably use something https://github.com/swup/swup instead, which seems to handle all concerns for us, including same page navigation.

[josevalim]

Now closed in favor of #1986.