Regex: Allowlisting URL Top-Level-Domains

I’m looking for a regex that allowlists specific TLDs in the URL scheme. Most of my tests are passing except for ones that repeat the TLD:

Regex

^https:\/\/[^\/]+\.my-site\.com|cloud\/?.*?$

False Positive

https://qa.my-site.cloud.cloud/check-this-out?check-it-out=true

This is showing as a valid match according to the regex. How do I avoid the regex matching URLs with repeated TLDs? Adding a group + {1} did not solve the problem: ^https:\/\/[^\/]+\.my-site\.(?:com|cloud){1}\/?.*?$

Language being used is Javascript.

>Solution :

There are two issues:

1. You need to wrap alternation (|) in parentheses: (com|cloud) instead of com|cloud
2. The / should be required if there is a path to the URL

Here’s a working regex:

^https:\/\/[^\/]+\.my-site\.(com|cloud)(\/.*?)?$

Try it.