You guys are killin me here!
People eat the strangest things. It is a luxury to eat Lobster, or the poor man's version, crawdads. And what are these, but giant cockroaches?
Ok, here it is...go into Safari settings and scroll done to developer,
TURN OFF debug console! That's it, that's all you have to do.
This has driven me insane for days..I too had no
idea how this appeared, you are not loosing your mind.
I am not sure, but I think it started when I received a Java update a few days ago, but as I said I'm really not sure.
BYW, I looked it on google if your interested. There is a lot more info there. Searched "debug console iPad" (no parentheses)
Good Luck !