(#2810) - simpler check for outdated IndexedDB

You will just have to take my word for it that this new test also susses out the broken IndexedDB implementation on certain Android devices just as well as the old test.

I've been playing around with a lot of old Android devices recently (God help me), so I figured this out after some futzing.

If you happen to have an HTC One running Android 4.3 or a Samsung Galaxy S3 running 4.3, you can verify this yourself. Or you can just believe me.