Collected research

Iframe HTTP Ping

ha.ckers.org web application security lab

Firefox fires an iframe's onload only when the load succeeds, while IE fires it always, so chained iframes reveal whether a host and port answer, including behind the firewall. Extends the known JavaScript-include port scan to iframes; credited to Spikeman on sla.ckers.

Record

Document

ha.ckers.org web application security lab

Published by

ha.ckers.org

Topic

HTTP

In the archive

• Collected in the 2007 research round

Related sources

• Iframe HTTP ping

Tags

• iframe
• side-channel
• detection
• info-leak
• sop-bypass
• javascript
• prior-art-extension
• owasp-a01-2021
• owasp-a09-2021

This page is the archive's own catalogue record. The research is the work of ha.ckers.org, first published at the original source. Preserved copies are kept so the citation survives its host; this one was last captured on 17 August 2026.