Since this syntax error didn't cause any errors in my local machine, I validated the regex against this external service, which did detect the error in the original regex: https://regex101.com/r/mD1fR2/1
Since this syntax error didn't cause any errors in my local machine, I validated the regex against this external service, which did detect the error in the original regex: https:/ /regex101. com/r/mD1fR2/ 1