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fix: preserve global CORS response semantics

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Guard only the per-bucket metadata lookup, then retain the global handler Vary and originless preflight behavior for non-CORS traffic.

Signed-off-by: Feng Ruohang <rh@vonng.com>
This commit is contained in:
Feng Ruohang
2026-08-29 18:19:57 +08:00
parent fc7bf7b295
commit 150e7b5f9e
2 changed files with 34 additions and 15 deletions
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cmd/api-router.go
+13 -15
View File
@@ -785,23 +785,21 @@ func corsHandler(handler http.Handler) http.Handler {
}
globalCors := cors.New(opts).Handler(handler)
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if r.Header.Get("Origin") == "" {
handler.ServeHTTP(w, r)
return
}
if bucket, _ := request2BucketObjectName(r); bucket != "" && globalBucketMetadataSys != nil {
cfg, _, err := globalBucketMetadataSys.GetCorsConfig(bucket)
if err == nil && cfg != nil {
if applyBucketCors(w, r, cfg) {
if r.Header.Get("Origin") != "" {
if bucket, _ := request2BucketObjectName(r); bucket != "" && globalBucketMetadataSys != nil {
cfg, _, err := globalBucketMetadataSys.GetCorsConfig(bucket)
if err == nil && cfg != nil {
if applyBucketCors(w, r, cfg) {
return
}
handler.ServeHTTP(w, r)
return
}
if err != nil && !errors.Is(err, errConfigNotFound) {
internalLogOnceIf(r.Context(), err, "bucket-cors-metadata")
handler.ServeHTTP(w, r)
return
}
handler.ServeHTTP(w, r)
return
}
if err != nil && !errors.Is(err, errConfigNotFound) && r.Header.Get("Origin") != "" {
internalLogOnceIf(r.Context(), err, "bucket-cors-metadata")
handler.ServeHTTP(w, r)
return
}
}
globalCors.ServeHTTP(w, r)