This clearly works on every regex tester I can find, as well as with jquery validation and MVC attributes. What am I missing? I have tried the literal as well as the RegExp but the most I get is validating the first 5 are numeric but other than that either fails anything else or nothing else.

example:
<https://regex101.com/r/gS0wP0/1>

```
regex: /(\d{5}(\s?)*,?(\s?)*)+/

ko.observable().extend({ pattern: { message: 'Test Message', params:/(\d{5}(\s?)*,?(\s?)*)+/ } });

```