invalid Unicode escape \.

[mtroskot]

In my React Native app the metro bundler fails with

error: node_modules/ajv-formats/dist/formats.js: /Users/mtroskot/Projects/app/node_modules/ajv-formats/dist/formats.js: invalid Unicode escape .

The issue is in the url regex.

url: /^(?:https?|ftp)://(?:\S+(?::\S*)?@)?(?:(?!(?:10|127)(?:.\d{1,3}){3})(?!(?:169.254|192.168)(?:.\d{1,3}){2})(?!172.(?:1[6-9]|2\d|3[0-1])(?:.\d{1,3}){2})(?:[1-9]\d?|1\d\d|2[01]\d|22[0-3])(?:.(?:1?\d{1,2}|2[0-4]\d|25[0-5])){2}(?:.(?:[1-9]\d?|1\d\d|2[0-4]\d|25[0-4]))|(?:(?:[a-z0-9\u{00a1}-\u{ffff}]+-)[a-z0-9\u{00a1}-\u{ffff}]+)(?:.(?:[a-z0-9\u{00a1}-\u{ffff}]+-)[a-z0-9\u{00a1}-\u{ffff}]+)(?:.(?:[a-z\u{00a1}-\u{ffff}]{2,})))(?::\d{2,5})?(?:/[^\s])?$/iu,