- Fix embedded ToC:
Previously, the element was added too late and was never instantiated.
- Improve ToC update timing:
Previously, the ToC was updated after the entering animation was over, which
resulted in the ToC being outdated for the duration of the animation.
- Improve destroying components timing:
Previously, the old embedded components were destroyed as soon as a
new document was requested. Even if the transition ended up never
happening (e.g. due to error while preparing the new document), the
embedded components would have been destroyed and the displayed
document would not work as expected.
Now the old embedded components are destroyed only after the new
document has been fully prepared.
- Improve scroll-to-top timing:
Previously, the page was scrolled to top after the entering animation was
over, which resulted in "jumpi-ness". Now the scrolling happens after the
leaving document has been removed and before the entering document has been
inserted.
PR Close#18428
Previously, the document was shown as soon as the HTML was received, but before
the embedded components were ready (e.g. downloaded and instantiated). This
caused FOUC (Flash Of Uninstantiated Components).
This commit fixes it by preparing the new document in an off-DOM node and
swapping the nodes when the embedded components are ready.
PR Close#18428
