Method serveNotFoundFile

fileserver/fileserver.go:416–439

If the next return value is true, the caller should proceed to the next over-ride path if there is one. If the err return value is non-nil, serving should stop.

(
	w http.ResponseWriter,
	r *http.Request,
	name string,
)

// over-ride path if there is one. If the err return value is non-nil, serving
// should stop.
func (fserver *FileServer) serveNotFoundFile(
	w http.ResponseWriter,
	r *http.Request,
	name string,
) (next bool, err error) {
	f, err := fserver.Root.Open(name)
	if err != nil {
		return true, nil
	}
	defer func() { _ = f.Close() }()

	d, err := f.Stat()
	if err != nil || d.IsDir() {
		return true, nil
	}

	// serverContent will check modification time
	sizeFunc := func() (int64, error) { return d.Size(), nil }
	err = serveContent(fserver.Inject, w, r, d.Name(), d.ModTime(), sizeFunc, f)
	if err != nil {
		return false, fmt.Errorf("Error serving file: %s", err)
	}
	return false, nil
}

// name is '/'-separated, not filepath.Separator.
func (fserver *FileServer) serveFile(