Safari web browser built-in Pop-up Blocker
With Safari web browser with Block Pop-Up Windows enabled as shown below, you will not be notified whether your Safari is blocking the pop-up window or not when you visit a website that brings out the popup window such as www.cnn.com.
You need to disable by deselecting Block Pop-Up Windows as shown below.
Or
Select Preferences…
Click Security tab and uncheck Block pop-up windows option under Web Content category as shown below.
