each sent and received transaction between Ada and Javascript parts Two ways of possible improvement for native Ada String: dynamic length handling and Unicode support. First possibility is using ...

JavaScript has a Unicode problem, see here for more information: As mentioned in the above blog post, with ES6 you probably won't need these utils. If you already use lodash, you don't need this.

Each ASCII character in the JavaScript payload is converted into an 8-bit binary representation, and the binary values (ones and zeros) in it are replaced with invisible Hangul characters.