Regex for stylelint rule

I'm using stylelint and I need a regex expression for it's max-nesting-depth rule to ignore selectors which begin with both &: and @media

https://stylelint.io/user-guide/rules/max-nesting-depth/

So far I've tried the below without sucess:

"max-nesting-depth": [3, {
  "ignore": ["/^&:/", "/^@media/"]
}]