Computer Configuration > Administrative Templates > Google Chrome
Both
HKLM\Software\Policies\Google\Chrome
If SSLErrorOverrideAllowed is Disabled, setting the policy lets you set a list of origin patterns that specify the sites where a user can click through warning pages Google Chrome shows when users navigate to sites that have SSL errors. Users will not be able to click through SSL warning pages on origins that are not on this list. If SSLErrorOverrideAllowed is Enabled or unset, this policy does nothing. Leaving the policy unset means SSLErrorOverrideAllowed applies for all sites. For detailed information on valid input patterns, please see https://cloud.google.com/docs/chrome-enterprise/policies/url-patterns. * is not an accepted value for this policy. This policy only matches based on origin, so any path in the URL pattern is ignored. Example value: https://www.example.com [*.]example.edu