Troubles with Cryptographic Module

Hi!

I’m trying to protect some sensitive data by subj, but example script
(https://extensions.xwiki.org/xwiki/bin/view/Extension/Cryptographic%20Module#HEnciphermentoftextusingapassword)
don’t work on my local test environment (10.10, Win10, Chrome 71 w/out ext):
i’m filling password, plain text and press “Encrypt” button, but after automatic page refresh all fields become empty.

Thanks for any help and tips