var compress/flate.errWriterClosed

3 uses

	compress/flate (current package)
		deflate.go#L628: 	if d.err == errWriterClosed {
		deflate.go#L646: 	d.err = errWriterClosed
		deflate.go#L695: var errWriterClosed = errors.New("flate: closed writer")

The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)