Unable to suppress warnings and errors

[shadyphp]

The silent config option does not hide warnings or errors as stated in the documentation.

Optionally suppress console errors and warnings.

Warning occurs when I try to add custom options to the config:
{ silent: true, loadingText: 'Kraunama...', noResultsText: 'Rezultatų nerasta', noChoicesText: 'Nerasta pasirinkimų', itemSelectText: 'Pasirinkti', searchPlaceholderValue: "Ieškoti", saveItem: 'Išsaugoti pasirinktima:', removeItem: 'Pašalinti', chooseItem: 'Rinktis' }

This works fine, but it does produce a warning in the console. Is there a way to hide the warning or just get rid of it?

[Xon]

Implemented as part of #1166