WiFi activity wheel keeps turning in Safari

The cog-wheel-like WiFi activity indicator (next to the WiFi fan) is continuously turning when I use Safari. I have tried clearing the Safari cache and history, shutting off the WiFi and reconnecting, closing Safari and restarting, even turning off the iPad and turning it back on. Still, whenever I go into Safari, the wheel just keeps on turning. I am able to use Safari, but this apparently constant activity is worrying.

Any ideas?

Okay, the problem has resolved itself. I have no idea how, but after I went to the Appstore and downloaded an update, then went back inti Safari, everything was fine again.

Message was edited by: David Neale1: problem resolved.