How to set whitelist for web pages?(Chrome for example)

1. Open Chrome browser, click "..." at the top right corner

2. Click “settings”

3. Click “Privacy and security” on the left side bar

4. Choose "Site settings"

5. Find "Allowed to send pop-ups and use redirects" and click the "add" button at the right side

6. Type in the IP addresses that you want to set whitelist, then click "add", now you succeed in 

To achieve a more accurate configuration, you can add ports behind the URL, with quotation marks, like below: