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[focus trap] Fix focus leaking in shadow DOM#48548

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mj12albert:fix-shadow-dom-focus-escapes-focustrap
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[focus trap] Fix focus leaking in shadow DOM#48548
mj12albert wants to merge 5 commits into
mui:masterfrom
mj12albert:fix-shadow-dom-focus-escapes-focustrap

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Fixes #34980

@mj12albert mj12albert added type: bug It doesn't behave as expected. scope: focus trap Changes related to the focus trap. labels May 19, 2026
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code-infra-dashboard Bot commented May 19, 2026

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https://deploy-preview-48548--material-ui.netlify.app/

Bundle size

Bundle Parsed size Gzip size
@mui/material 🔺+414B(+0.08%) 🔺+138B(+0.09%)
@mui/lab 0B(0.00%) 0B(0.00%)
@mui/private-theming 0B(0.00%) 0B(0.00%)
@mui/system 0B(0.00%) 0B(0.00%)
@mui/utils 0B(0.00%) 0B(0.00%)

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@mj12albert mj12albert force-pushed the fix-shadow-dom-focus-escapes-focustrap branch 5 times, most recently from 36ec88b to 0d6f27f Compare May 20, 2026 14:27
@mj12albert mj12albert force-pushed the fix-shadow-dom-focus-escapes-focustrap branch from 7cbbc63 to dcec137 Compare June 1, 2026 08:29
@github-actions github-actions Bot added the PR: out-of-date The pull request has merge conflicts and can't be merged. label Jun 2, 2026
@mj12albert mj12albert force-pushed the fix-shadow-dom-focus-escapes-focustrap branch from dcec137 to 70b05c2 Compare June 2, 2026 00:59
@github-actions github-actions Bot removed the PR: out-of-date The pull request has merge conflicts and can't be merged. label Jun 2, 2026
@mj12albert mj12albert force-pushed the fix-shadow-dom-focus-escapes-focustrap branch from 70b05c2 to 93cb7a6 Compare June 4, 2026 00:33
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scope: focus trap Changes related to the focus trap. type: bug It doesn't behave as expected.

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[Popover] FocusTrap in a Shadow DOM loses the focus

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