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Prevent superfluous response.WriteHeader (#15456) (#15476)

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Backport #15456

This PR simply checks the status before writing the header.

Signed-off-by: Andrew Thornton <art27@cantab.net>
This commit is contained in:
zeripath 2021-04-15 11:02:42 +01:00 committed by GitHub
parent b28c3245cc
commit 00e55dd223
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1 changed files with 7 additions and 3 deletions
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10
modules/context/response.go
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@ -4,7 +4,9 @@
package context package context
import "net/http" import (
"net/http"
)
// ResponseWriter represents a response writer for HTTP // ResponseWriter represents a response writer for HTTP
type ResponseWriter interface { type ResponseWriter interface {
@ -60,8 +62,10 @@ func (r *Response) WriteHeader(statusCode int) {
} }
r.beforeExecuted = true r.beforeExecuted = true
} }
r.status = statusCode if r.status == 0 {
r.ResponseWriter.WriteHeader(statusCode) r.status = statusCode
r.ResponseWriter.WriteHeader(statusCode)
}
} }
// Flush flush cached data // Flush flush cached data