[Wildcards] RangeError: Maximum call stack size exceeded

[modestaspruckus]

Describe the bug

When escaping payload fields with wildcard *, it throws error:

RangeError: Maximum call stack size exceeded
    at Array.slice (<anonymous>)
    at /Users/modestaspruckus/projects/backend/node_modules/express-validator/src/select-fields.js:44:14
    at Array.map (<anonymous>)
    at expandPath (/Users/modestaspruckus/projects/backend/node_modules/express-validator/src/select-fields.js:42:14)
    at /Users/modestaspruckus/projects/backend/node_modules/express-validator/src/select-fields.js:50:13
    at Array.forEach (<anonymous>)
    at expandPath (/Users/modestaspruckus/projects/backend/node_modules/express-validator/src/select-fields.js:49:14)
    at /Users/modestaspruckus/projects/backend/node_modules/express-validator/src/select-fields.js:50:13
    at Array.forEach (<anonymous>)
    at expandPath (/Users/modestaspruckus/projects/backend/node_modules/express-validator/src/select-fields.js:49:14)
    at /Users/modestaspruckus/projects/backend/node_modules/express-validator/src/select-fields.js:50:13
    at Array.forEach (<anonymous>)
    at expandPath (/Users/modestaspruckus/projects/backend/node_modules/express-validator/src/select-fields.js:49:14)
    at /Users/modestaspruckus/projects/backend/node_modules/express-validator/src/select-fields.js:50:13
    at Array.forEach (<anonymous>)
    at expandPath (/Users/modestaspruckus/projects/backend/node_modules/express-validator/src/select-fields.js:49:14)

To Reproduce

1. Go to https://runkit.com/modestaspruckus/63c7f7aacca97c00089cd8b6
2. Click on run

Expected behavior

No error

Current behavior

Throws RangeError: Maximum call stack size exceeded

Environment:

• Express-validator version: 6.14.0
• Express version: 4.18.2
• Node.js version: 16.17.1

[gustavohenke]

Thanks! I've reproduced it and will work on a fix.

[gustavohenke]

Fix published v6.14.3.