Scroll issue when navigating between pages

[gavinr]

Describe the bug

When scrolling down on a page then clicking a link, the next page is scrolled down when it should not be.

Reproduction

1. Go to https://gavinr.github.io/sveltekit-scroll-issue/
2. Scroll down 75% on the page, click link ~400
3. Next page loads.
   • Expected: page loads with scroll at top of page
   • Actual: page loads scrolled down to bottom of page.

Logs

None

System Info

System:
    OS: Have tested this on Windows 10 and Linux (Mint)
  Binaries:
    Node: 14.18.1 - /usr/bin/node
    npm: 8.1.1 - /usr/bin/npm
  Browsers:
    Have tested on chrome and Firefox (latest) - happens on both
  npmPackages:
    @sveltejs/adapter-static: ^1.0.0-next.21 => 1.0.0-next.21 
    @sveltejs/kit: next => 1.0.0-next.195 
    svelte: ^3.42.6 => 3.44.1

Severity

serious

Additional Information

1. See code at https://github.com/gavinr/sveltekit-scroll-issue
2. It looks like the issue started at version next.193. For example, if you clone the above repository and run npm install @sveltejs/kit@1.0.0-next.192 it will work correctly, but if you run npm install @sveltejs/kit@1.0.0-next.193 it will be broken.
3. This is possibly the same issue as Incorrect scrolling when navigating between pages #2720 from @NewNik - I think that one was closed in error as you can see this clear replication case the scroll issues are still happening.

[f-elix]

I just tested this fix on version next.196 in a production project (in a dev environment) and I am still getting scrolling issues when navigating.

It's very hard to pin down a particular condition because it happens inconsistently. Sometimes the same navigation that worked previously will stop working and vice-versa. I know that I'm not controlling the scroll in any of the components and the body has no margin.

I noticed it happens more often when I scroll past the first half of the page before navigating to another page.

I reverted back to next.192 in the meantime, just wanted to let you know that the issue is still present.

[gavinr]

@f-elix thank you - I have updated my demo case to vnext.196 and also am having issues. Since I cannot re-open this issue, I will open a new issue.