Scroll position lost after browser refresh / error popup

[yuhan0]

Repro:

• Have clerk show the following file on a small browser window such that it doesn't fit on a single page, and scroll to the bottom where the assoc block is visible.

(ns repro.scroll
  (:require [nextjournal.clerk :as clerk]))

:long
:document
:with
:lots
:of
:cells

(assoc {:current :position}
       :in :document
       ;; whoops
       )
       
(comment
  (clerk/show! *ns*))

• Pretend to have made an error while editing the document by uncommenting the ;;whoops line
• Save and eval clerk/show!
• Browser page transforms into lots of scary red stacktraces
• Fix the error by commenting the line back out.

Expected:

• Last scroll position is preserved, such that the 'current' block being worked on remains visible.

Actual:

• Scroll position is reset to top of page , user has to manually scroll back to where they were (usually at the bottom of a file)

Additional notes:

Scroll position should also be restored after showing a different namespace and returning back to the original, or after manually refreshing the page. (note that most websites display this behaviour)