const golang.org/x/net/http2.cipher_TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256

one use

	golang.org/x/net/http2 (current package)
		ciphers.go#L347: 	cipher_TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256   uint16 = 0xCCAC

The pages are generated with Golds v0.4.9. (GOOS=linux GOARCH=amd64)