Web page not loading using activity starter

I'm using the activity starter to click a button and open a web page. It works fine when the url is to google but otherwise I get this image. The website I'm trying to go to works fine on my laptop. Is the website just not supported or am I doing something wrong? I am using the emulator. Thank you.

Try to use your cellphone

I don't have an android

So what OS do you use on your cellphone

You can never get real look of your app in emulator, specially in ai2 emulator (it uses quite old version of android).
So better is to use a real device.

I have an Iphone, so IOS

You can use iPhone to build your app.
Watch this :