templates: Delete headers on httpError to reset to clean slate (#5905)

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Francis Lavoie 2023-10-18 18:43:14 -04:00 committed by GitHub
parent ac1f20b9e4
commit 4e8245df0b
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@ -444,6 +444,14 @@ func (c TemplateContext) funcFileStat(filename string) (fs.FileInfo, error) {
// funcHTTPError returns a structured HTTP handler error. EXPERIMENTAL; SUBJECT TO CHANGE.
// Example usage: `{{if not (fileExists $includeFile)}}{{httpError 404}}{{end}}`
func (c TemplateContext) funcHTTPError(statusCode int) (bool, error) {
// Delete some headers that may have been set by the underlying
// handler (such as file_server) which may break the error response.
c.RespHeader.Header.Del("Content-Length")
c.RespHeader.Header.Del("Content-Type")
c.RespHeader.Header.Del("Etag")
c.RespHeader.Header.Del("Last-Modified")
c.RespHeader.Header.Del("Accept-Ranges")
return false, caddyhttp.Error(statusCode, nil)
}