Simple Frames Legacy Layouts

Deeply Nested (3 Levels) Old CMS

Cross-Domain (Blocked) Ads / Widgets

Same-origin policy blocks access.

Form Inside iframe Payment Gateways

Cross-Frame Communication Micro Frontends

Dynamic Load (3 s) Lazy Load

Hidden iframe Analytics

Present in DOM but not visible.

Scrollable Content Documents

iframe in Shadow DOM Web Components

Grid of iframes Dashboards