Hi,
Do not use any URL outside of the ones that we explicitly allow in the task description.
"
http://example.com/" is not the URL that you should use.
This is just what the grader uses internally to access your submission.
It has no other meaning.
In task 1b, you should have used "bank.html" as the URL for the iframe, and "victim.html" in task 2a.
Sorry about the confusion.
I hope that clears that up.
Cheers
Sebastian