If you're having trouble not getting the message pop up again, it could be a cache issue. Try deleting your previous cookies & cache data, and history, and see if it doesn't come up again. I know you said you did already but try clearing all data to be safe.
Note: but definitely do Fentsi's suggestion first. Because if that's what's causing it, you'll still need to address it eventually.
Note: but definitely do Fentsi's suggestion first. Because if that's what's causing it, you'll still need to address it eventually.