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| author | James Tucker <james@tailscale.com> | 2025-01-31 12:54:50 -0800 |
|---|---|---|
| committer | James Tucker <james@tailscale.com> | 2025-01-31 12:58:34 -0800 |
| commit | a9e5f88193195b03927be4cfc88498f0898ed5d6 (patch) | |
| tree | 9ae38bd09dece69589fb20cf7cf3478da69fba34 | |
| parent | 0a51bbc7651a2414cde4b1e40ad726f7f19e3dc7 (diff) | |
| download | tailscale-raggi/derp-204-cache-control.tar.xz tailscale-raggi/derp-204-cache-control.zip | |
derp/derphttp: set cache-control to disallow caching of captive portal checksraggi/derp-204-cache-control
Observed on some airlines, Squid is configured to cache and transform
these results, which is disruptive. The server and client should both
actively request that this is not done.
Updates #14856
Signed-off-by: James Tucker <james@tailscale.com>
| -rw-r--r-- | derp/derphttp/derphttp_server.go | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/derp/derphttp/derphttp_server.go b/derp/derphttp/derphttp_server.go index ed7d3d707..6d8053eb6 100644 --- a/derp/derphttp/derphttp_server.go +++ b/derp/derphttp/derphttp_server.go @@ -98,6 +98,7 @@ func ServeNoContent(w http.ResponseWriter, r *http.Request) { w.Header().Set(NoContentResponseHeader, "response "+challenge) } } + w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate, no-transform, max-age=0") w.WriteHeader(http.StatusNoContent) } |