Arbitrary HTML preservation during import / export roundtrips

[vadimkantorov]

Can Lexical preserve arbitrary HTML during import / export?

The usecase would be a simplistic CMS, where an HTML landing would be edited using Lexical as a whole file. Such HTML landings are now very well generated by LLMs, so having a super-simple WYSIWYG-style editor (allowing to change text, add paragraphs or replace images) is already useful.

The idea would be that certain HTML sections nodes would be editable (e.g. only those with a designated css class), and the rest would be preserved in the editor state as is, and that their HTML would be exported back in its initial form