Cross-origin and https-to-http redirects strip the request realm, but exitAfterIntercept re-derived it from config.getRealm(), reattaching a client-wide realm to the redirect target:
the target answers 401 and then receives the configured credentials, leaking them to a different origin
Redirect30xInterceptor already clears future.getRealm() on the strip, so read the realm from the future instead of falling back to config
Added a cross-origin 401 case to RedirectCredentialSecurityTest that fails without the change.
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Cross-origin and https-to-http redirects strip the request realm, but exitAfterIntercept re-derived it from config.getRealm(), reattaching a client-wide realm to the redirect target:
Added a cross-origin 401 case to RedirectCredentialSecurityTest that fails without the change.