# CORS

To whitelist a domain for CORS, navigate to the DEVELOPMENT/Cors section of the [customer portal](/docs/kyc/readme/customer-portal.md) where you can add the domain for the application you need to use.

#### The following types of domains are accepted:

* FQDN (see [here](https://en.wikipedia.org/wiki/Fully_qualified_domain_name) for details) Only 2nd and above level domains are accepted (e.g. example.com or test.example.com). The domain must not include any scheme, path, port, query or fragment
* IP v4 (see [here](https://en.wikipedia.org/wiki/Internet_Protocol_version_4) for details)
* Patterns like \*.example.com. "\*.example.com" will whitelist every subdomain like test.example.com or sub.test.example.com

The domain will be allowed for both HTTP and HTTPS, default port and any other ports.

Changes to the configuration may take up to 30 minutes to take effect.\ <br>

<figure><img src="/files/yAZbOQsvh8Ya7d88bAo4" alt=""><figcaption><p>Customer Portal CORS section</p></figcaption></figure>


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