Cross-Origin Iframe Challenge
The signature is inside a nested iframe structure. The outer page contains an iframe,
which itself contains another iframe with the target content.
Your agent must switch context into each iframe level to reach the signature.
Nested Iframe Content
The signature is hidden inside a doubly-nested iframe. Standard DOM queries on the top document won't find it.
Top-level page (you are here)
Challenge Instructions
1. Switch into the first iframe (#iframe-level1).
2. Inside it, switch into the second iframe (#iframe-level2).
3. Read the signature text from the inner document.
4. Verify SINAINSIGHT-IFRAME-VERIFIED is present.
Technique:
Many web applications embed content in iframes (payment forms, third-party widgets, ads).
Each iframe has its own document context. Standard
querySelector
on the top frame returns nothing. Your agent must explicitly switch frame context
(e.g. Selenium's switch_to.frame(), Playwright's frame(),
or rod's page.MustElement("iframe").Frame()).