Extract PineScript for a protected strategy from Tradingview

If you have familiar with Tradingview you are aware that we can apply script strategies to our chart. Problem is sometimes these indicators are private, meaning you can still add them to your chart but cannot see the source code of that indicator (Pinescript) written by the author.

You can use Chrome Debugger tool to debug the JavaScript and get code for public. Need help retrieving the private scripts.