Just found this out the hard way – Safari froze on my iPad2 and I was stumped for a while, but it’s all sorted now.
- Open the Safari frozen page.
- Hold the On/Off button till the Power Off Slide bar shows up. Note: Do not power off though.
- Press and hold the Home button until the Home screen shows up.
- Restart your Safari app, it should be OK.
Clear safari cache and cookies Tap Settings > Safari and select Clear History, Clear Cookies, and Clear Cache.
it’s easy once you know how :/