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SplitHTTP: Added headers to signal cache bypass #3652

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Aug 10, 2024
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4 changes: 4 additions & 0 deletions transport/internet/splithttp/hub.go
Original file line number Diff line number Diff line change
Expand Up @@ -184,6 +184,10 @@ func (h *requestHandler) ServeHTTP(writer http.ResponseWriter, request *http.Req

// magic header instructs nginx + apache to not buffer response body
writer.Header().Set("X-Accel-Buffering", "no")
// A web-compliant header telling all middleboxes to disable caching.
// Should be able to prevent overloading the cache, or stop CDNs from
// teeing the response stream into their cache, causing slowdowns.
writer.Header().Set("Cache-Control", "no-store")
if !h.config.NoSSEHeader {
// magic header to make the HTTP middle box consider this as SSE to disable buffer
writer.Header().Set("Content-Type", "text/event-stream")
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