TanStack
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router
TanStack Router is a type-safe, data-driven React router with built-in caching, prefetching, and nested layouts, while TanStack Start extends it into a full-stack SSR framework.
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FR-AI / ANALYSISWhy it is worth attention
Extracted from real-world tools like Vite DevTools and Nuxt DevTools, it solves the common problem of iframe state loss in component frameworks with a minimal, framework-agnostic approach.
Who it is for
- Developers using Vue, React, or Solid who need stable iframe embedding
- Creators of multi-tab dashboards or panels with persistent embedded content
- Tool builders (e.g., IDEs, devtools) requiring stateful iframe lifecycles
Use cases
- Switching tabs in a dashboard without reloading the iframe content
- Moving an embedded iframe between layout positions while preserving scroll, inputs, and JS state
- Hiding and showing a preview panel without throttling its rendering
Strengths
- Zero dependencies and framework-agnostic; works with plain DOM or any component library
- State preservation via a dedicated overlay container that never re-renders
- Warm hiding (opacity 0.001) keeps the embedded page fully active and unthrottled
- LRU auto-dispose limits memory usage when many panes are created
Considerations
- The default container is position:fixed, which may need customization if ancestors create a containing block
- Pane positions follow target boxes but not target lifecycle; manual unmount is required when target is removed from DOM
- Multiple panes mounted to the same target stack in creation order, without built-in conflict resolution
README quick start
Usage
Description
Pane for manage and persistent iframes
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