Comment by thaumasiotes

There is a bug in the calculation of the known prefix.

Suppose the target word is before tin, but after timorous. Midword only displays "ti" for the known prefix. But it should display "tim" - there is no string that could start with "tin..." but sort before the string "tin".

(Another bug is that if you take a hint that would reveal the entire word, the site doesn't display what the word was.)