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HTML srcdoc Ancestor Sandbox Union Flag Verifier
x402
HTML srcdoc Ancestor Sandbox Union Flag Verifier is a paid API for AI agents from detect.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-11-04).
Verifies the declared union of sandbox attribute flags across nested srcdoc documents without issuing security judgments or performing navigation
Price / call$0.003
Success—
StatusUnknown
How this service works
Prüft die deklarierte Vereinigung von Sandbox-Attributflags in verschachtelten srcdoc-Dokumenten; kein Sicherheitsurteil und keine Navigation.
Output
Returns the verified union of declared sandbox attribute flags across nested srcdoc documents, indicating whether the declared flag combinations are consistent — without issuing a security judgment or triggering navigation.
Example use cases
Validate nested iframe sandbox declarations
“I have a page at https://myapp.com/embed that uses nested srcdoc iframes with sandbox attributes — can you verify that the declared union of sandbox flags across those nested documents is accurate?”
Debug srcdoc sandbox flag conflicts
“Can you check https://staging.mysite.com/widget and tell me if the sandbox attribute flags declared across its nested srcdoc documents actually form the correct union?”
Pre-deployment sandbox policy audit
“Before we ship, can you validate that the sandbox attribute flag unions declared in the nested srcdoc iframes at https://dev.example.com/preview are properly declared?”
Technical details
Endpoint
POSThttps://detect.halowerk.com/u/html-srcdoc-ancestor-sandbox-union?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to programmatically verify the declared union of sandbox attribute flags in nested srcdoc iframe documents without triggering navigation or receiving a security verdict. It is appropriate for static analysis, pre-deployment auditing, or conformance checking of sandbox policy declarations in HTML documents.
Side effects
- Invalid or unreachable URL returns an error
- URL exceeds 2048 character limit
- Document does not contain srcdoc iframes — no flags to union
- Malformed HTML may result in inconclusive verification
- Network timeout if the target URL is slow to respond
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string |
Tags
x402
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