Pop-up allow list

This policy setting allows you to specify a list of web sites that will be allowed to open pop-up windows regardless of the Internet Explorer process's Pop-Up Blocker settings. If you enable this policy setting, you can enter a list of sites which will be allowed to open pop-up windows regardless of user settings. Only the domain name is allowed, so www.contoso.com is valid, but not http://www.contoso.com. Wildcards are allowed, so *.contoso.com is also valid. If you disable this or do not configure this policy setting, you will not be able to provide a default Pop-up Blocker exception list. Note: You can disable users from adding or removing websites to the exception list by enabling "Turn off Managing Pop-up Allow list" policy.