TIP: Adobe Flash Player Security Error

Hi. When you're developing your Flash applications, sometimes you will need to open the swf file of your app, and you may enounter this warning:

If you get this warning, your swf file will not connect to your server or to the url you're trying to connect.
To prevent this, you only need to set the Local playback security in the Publish Settings (File > Publish Settings..., shortcut key: Ctrl+Shift+F12) to Access network only (Like the following image).