Website will run on Windows laptop but not iPad air

Not every website is optimized for the iOS or mobile devices - if possible use "m" instead of www like m.redcross.org instead of www.redcross.org and check

You can also try with a different browser if desired

It might be that the Red Cross site uses Flash to provide the "learning content." If that is the case the iPad will not display the content since iOS devices do not support Flash.

Find out if Red Cross has an app in the app store. If they do, use their app instead of web browser.

You can also try going to Settings->Safari->General->Block Popups and make sure it's turned off.

Then try loading the website again.

Alternatively, a different browser such as Chrome, or Firefox may work.

At least some of the Red Cross Learning Center courses require a machine with a Java Virtual Machine installed and those will not work with an iOS browser.

What you are seeing in the Windows computer is a warning about pop-ups which you can Allow Once or Always Allow (which will remember the website in the future). If you are using Safari in the iPad to access the website and you have Block Pop-Ups enabled in Settings, it will block the pop-up automatically with no further response. On your iPad you could try going to Settings > Safari > and turn Block Pop-Ups to OFF (not green) but please note that this will allow all pop-ups for all websites. In contrast to Windows there is no way of allowing specific settings for one website.

You're welcome, glad I could help.