Why preserve the scroll position on the first navigation?

[Dante-dan]

I noticed that when the page unload, the scroll position is saved in history.state.

router/packages/router/src/history/html5.ts

Line 129 in 1cf14f8

function beforeUnloadListener() {

And it returns to the scroll position when refreshed.

router/packages/router/src/router.ts

Line 1158 in 1cf14f8

function handleScroll(

But this behavior is confusing, especially when my page is a SPA , where the initial screen is often a skeleton screen or empty. This scrolling is often ineffective.

When my page is outputted through SSR , the scroll position might also be incorrect, for instance, if some content on the page depends on dynamic JavaScript execution, or if the page contains adaptive images.

At the same time, this behavior also goes against the following description:

The third argument, savedPosition, is only available if this is a popstate navigation (triggered by the browser's back/forward buttons).

Because Refresh Page is not a popState.