# Content Security Policy (CSP)

If you need to enforce content security policy (CSP) on the users browsers you can enable CSP on ngSurvey using following enviroment variable.

**`NGSurvey:CPSPolicy`**must be set to "Self" will enforce the content security policy (CSP) on the browser. 

{% hint style="warning" %}
Widget based answer items and any custom javascript related features like form codes, custom answer validations will be disabled if set to Self. 
{% endhint %}