Chrome/Safari makes another request to the page when encountering:
For example, if the page is hosted at http://www.example.com/dir/mypage.htm,
each of these cause another request to be made to
http://www.example.com/dir/mypage.htm. This seems like a serious bug that has
the potential to do a lot of damage to servers.
Steps to Reproduce:
1. Create a page with one of the offending patterns.
2. Load the page while watching HTTP traffic.
Observe that there are multiple requests to the same page.
There should be only one request to the specified page.
Note: Opera doesn't fire a request under any of these circumstances and Internet
Explorer only fires a request for <img src="">, but not for the others. Firefox behaves the same as Safari/Chrome.
Why do you think it's a bug? It's exactly what the page author asked for. What kind of damage can this do to servers?
Anyway, marking as duplicate.
*** This bug has been marked as a duplicate of bug 30303 ***