Get code from private pinescript strategy

If you are familiar with the charting platform Tradingview then you will know that we can apply script stategies to our chart. However sometimes these indicators are private, meaning you can still add them to your chart but cannot see the source code of that indicator (Pinescript) because the author did not give you access. You can use Chrome Debugger tool to debug the Javascript and get the Pinescript of public scripts. However I dont know how to do it for private scripts. If you are good with Javascript this should be right up yout alley