Document editor crashes on large documents with   characters

[fezproof]

Description

The keystatic website will crash my tab whenever a make an edit to a large document fields or save a particularly large one. This seems to be caused by memory leaks.

There are no errors printed to the browser console or terminal. The page will just error out.

Screen.Recording.2023-09-26.at.9.59.18.pm.mov

Specs

Running on the astro runtime just locally using the local storage option.
@keystatic/core 0.1.5
@keystatic/astro 1.0.2

[fezproof]

Ok so I did some experiments and it seems to be related to content fields containing the   character. If there are too many it will crash

[JedWatson]

Interesting, I haven't seen this before but it sounds like something we can look into.

@fezproof can you share the source code for a document (including a lot of &nbsp) that causes the issue for you so we can try and reproduce it? feel free to link to a file or a gist rather than pasting a large document here

[fezproof]

Does this make sense? Happy to clarify anything. Sorry for all the Pathfinder jargon
https://gist.github.com/fezproof/258fe62357e8892515f7e5531ce31232