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authorMatthew Holt <[email protected]>2019-06-07 19:59:17 -0600
committerMatthew Holt <[email protected]>2019-06-07 19:59:25 -0600
commitef5f29cfb257c7503763a4b16947c4eb6a7864c3 (patch)
tree2bceddc23e11434e1bbf7361adf045ec52b12c52 /modules/caddyhttp/staticresp.go
parent8947ae0cc1babf2ca6f8e01aa93cb13eebb3e854 (diff)
downloadcaddy-ef5f29cfb257c7503763a4b16947c4eb6a7864c3.tar.gz
caddy-ef5f29cfb257c7503763a4b16947c4eb6a7864c3.zip
Do not allow Go standard lib to sniff Content-Type header
Diffstat (limited to 'modules/caddyhttp/staticresp.go')
-rw-r--r--modules/caddyhttp/staticresp.go5
1 files changed, 5 insertions, 0 deletions
diff --git a/modules/caddyhttp/staticresp.go b/modules/caddyhttp/staticresp.go
index 091cf3a5f..ad5968111 100644
--- a/modules/caddyhttp/staticresp.go
+++ b/modules/caddyhttp/staticresp.go
@@ -39,6 +39,11 @@ func (s Static) ServeHTTP(w http.ResponseWriter, r *http.Request) error {
w.Header()[field] = vals
}
+ // do not allow Go to sniff the content-type
+ if w.Header().Get("Content-Type") == "" {
+ w.Header()["Content-Type"] = nil
+ }
+
// get the status code
statusCode := s.StatusCode
if statusCode == 0 && s.StatusCodeStr != "" {