fix: use scoped DOMPurify instance to avoid mutating global#10873
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mixelburg wants to merge 1 commit into
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fix: use scoped DOMPurify instance to avoid mutating global#10873mixelburg wants to merge 1 commit into
mixelburg wants to merge 1 commit into
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Fixes #10871
Swagger UI currently calls
DomPurify.addHook()on the global DOMPurify object at module scope. This leaks side effects to any host application sharing the same instance — notably, thebeforeSanitizeElementshook overwritesrelon all elements withhref, breaking stylesheet<link>elements (see backstage/backstage#34037).This fix creates a scoped DOMPurify instance via
DomPurify(window)so hooks are isolated and the global object is never modified. The SSR case falls back to the originalDomPurifyobject whenwindowis undefined. Thesanitizer()export function also uses the scoped instance for consistency.