Computer Configuration > Administrative Templates > Microsoft Edge
Both
HKLM\Software\Policies\Microsoft\Edge
Microsoft Edge shows a warning page when users visit sites that have SSL errors. If you enable or don't configure the 'SSLErrorOverrideAllowed' (Allow users to proceed from the HTTPS warning page) policy, this policy does nothing. If you disable the 'SSLErrorOverrideAllowed' policy, configuring this policy lets you configure a list of origin patterns for sites where users can continue to click through SSL error pages. Users can't click through SSL error pages on origins that are not on this list. If you don't configure this policy, the 'SSLErrorOverrideAllowed' policy applies for all sites. For detailed information about valid origin patterns, see https://go.microsoft.com/fwlink/?linkid=2095322. * is not an accepted value for this policy. This policy only matches based on origin, so any path or query in the URL pattern is ignored. Example value: https://www.example.com [*.]example.edu