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caddyhttp: Canonicalize header field names (#5176)

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Alexander Graf 2022-10-29 22:35:44 +02:00 committed by GitHub
parent 1fa4cb7ba1
commit 087f126cf4
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1 changed files with 2 additions and 1 deletions
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3
modules/caddyhttp/staticresp.go
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@ -21,6 +21,7 @@ import (
"fmt"
"io"
"net/http"
"net/textproto"
"os"
"strconv"
"strings"
@ -193,7 +194,7 @@ func (s StaticResponse) ServeHTTP(w http.ResponseWriter, r *http.Request, next H
// set all headers
for field, vals := range s.Headers {
field = repl.ReplaceAll(field, "")
field = textproto.CanonicalMIMEHeaderKey(repl.ReplaceAll(field, ""))
newVals := make([]string, len(vals))
for i := range vals {
newVals[i] = repl.ReplaceAll(vals[i], "")