Mario Pietsch

I can see, that you already digged deep into the TW build process. So I'll update my PR with some more changes. If you checkout my [empty-external-js](https://github.com/pmario/TiddlyWiki5/tree/empty-external-js) branch, you'll see...

Here's the old PR https://github.com/Jermolene/TiddlyWiki5/pull/3501

@Jermolene ... "improvement"?

Close this on in favour of later issues and ongoing efforts.

I just did some drag & drop import test to archived empty.html wikis AES-128 (created with TW v5.3.3) and AES-256 (created with this PR) both work - TW v5.3.3 ->...

- Created an encrypted wiki with TW v5.1.23 and imported it to v5.3.3 and v5.3.4-pre -> **works** - Created an encrypted wiki with TW v5.2.7 and imported it to v5.3.3...

- As I wrote I did create 2 wikis. - Both are saved encrypted. - One wiki created from TW v5.3.3, default AES-128 - one created with TW v5.3.4-pre, default...

@Jermolene -- I found the changes that caused the problem - https://github.com/Jermolene/TiddlyWiki5/issues/6330 - Commit: https://github.com/Jermolene/TiddlyWiki5/commit/60187dc59e6546d9ca8e6a35418f782a9627cda0

Cross posted from: https://talk.tiddlywiki.org/t/enable-aes-256-encryption-for-tw/11169/8 The problem is a bit tricky and it has been quite some time since I did the tests. So I did test again in more detail...

@Jermolene -- To replicate the tests I did with this PR: ### Forward compatibility test - Open wiki created with this PR https://deploy-preview-8249--tiddlywiki-previews.netlify.app/#GettingStarted - Download empty.html - Create a new...