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// Extendify's front-end surfaces (Quick Edit, the Agent, the simple toolbar) |
| 2 |
// must never activate inside another tool's iframe. The Customizer preview, |
| 3 |
// multilingual editors, and page-builder previews are all front-end renders, |
| 4 |
// so the bundles enqueue and would otherwise mount — but Extendify only |
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// belongs on the live, top-level page. The live front end is always |
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// top-level, so a single `self !== top` check rules out every framed |
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// context, present and future. |
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export const isEmbedded = (win = window) => { |
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try { |
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return win.self !== win.top; |
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} catch { |
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// A cross-origin parent throws on `.top` access; that, too, is framed. |
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return true; |
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} |
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}; |
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|
