Navigation baseline
Separates availability, redirects and server timing from iframe-specific behavior.
Synthetic iframe diagnostics
Compare direct and embedded rendering in clean Chromium sessions. Inspect framing headers, redirects, runtime errors, failed requests, nested frames and loading signals in one reproducible report.
New browser run
Fresh context · no stored cookies · 40 s hard deadline
Diagnostic model
Separates availability, redirects and server timing from iframe-specific behavior.
Evaluates the final response’s framing directives against the exact ancestor origin.
Compares direct and embedded Chromium contexts, including nested frames and console output.
Ranks only recommendations supported by captured evidence and measurable thresholds.