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fix(core): docusaurus serve answers 400 to .. segments that reach the fake root name - #12912
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slorber merged 1 commit intoNov 6, 2026
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… the fake root name Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Size Change: 0 B Total Size: 12.1 MB ℹ️ View Unchanged
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Motivation
docusaurus serveanswers 400 to..segments that go above the root, like serve-handler. ButparseRootURLPath()resolves paths from a fake root, so/../__docusaurus_root__/file.htmlreached the fake root name, resolved to/file.html, and redirected to/file.Now paths are resolved from 2 fake roots:
..segments going above the root can reach the name of one of them, never both. So any path that goes above the root gets a 400, whatever the fake root names.Test Plan
Flips the TODO test of #12910.
Test links
Deploy preview: https://deploy-preview-12912--docusaurus-2.netlify.app/
Related issues/PRs
Stacked on #12911. CodeRabbit also flagged it on #12910.
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