Follow redirects based on the request and strip credentials on cross-…#4226
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…host redirects The Spring WebClient based FlowableHttpClient never followed redirects. It now follows them unless the request disables redirects (HttpRequest#isNoRedirects). The decision is made per request: a Reactor context value is written on the exchange and read by a Reactor Netty followRedirect predicate, so a single client/connection pool is used. The Apache HttpClient 5 based client refused to follow a redirect to a different host when the request carried credentials or cookies. It now strips those sensitive headers (Authorization, Cookie, Proxy-Authorization) on cross-host redirects and follows the redirect, so content behind a redirect can be retrieved without leaking credentials to the redirect target. Reactor Netty already drops sensitive headers on cross-domain redirects.
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…host redirects
The Spring WebClient based FlowableHttpClient never followed redirects. It now follows them unless the request disables redirects (HttpRequest#isNoRedirects), consistent with the Apache HttpClient based clients. This is implemented with two WebClients (one following redirects, one not) selected per request.
The Apache HttpClient 5 based client refused to follow a redirect to a different host when the request carried credentials or cookies. It now strips those sensitive headers (Authorization, Cookie, Proxy-Authorization) on cross-host redirects and follows the redirect, so content behind a redirect can be retrieved without leaking credentials to the redirect target.
Reactor Netty already drops sensitive headers on cross-domain redirects.
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