Hi Mat, I had a closer look at the implementation and it seems to be simple to implement into TW. Both the encoder and the decoder. There are some lzma libraries at github, which could be used. Minified code size may be about 50kByte ... BUT
There are 2 concerns. 1) Security. See the last note here <https://itty.bitty.site/#How_it_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>. With TW we will need to implement an HTML sanitizer, otherwise it would be a nightmare. Which will increase the library size. 2) I don't see a real usecase, other than smaller QRs with more content. I personally would encode the tiddler text and not the rendered tiddler. just some thoughts mario -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/0ac47316-b31b-437b-a928-6a3ac6f4d96b%40googlegroups.com.

