diff --git a/api/go1.11.txt b/api/go1.11.txt
index d474cf0e8d1..ead2a59e16c 100644
--- a/api/go1.11.txt
+++ b/api/go1.11.txt
@@ -445,9 +445,19 @@ pkg net, method (*ListenConfig) ListenPacket(context.Context, string, string) (P
 pkg net, type Dialer struct, Control func(string, string, syscall.RawConn) error
 pkg net, type ListenConfig struct
 pkg net, type ListenConfig struct, Control func(string, string, syscall.RawConn) error
+pkg net/http, const SameSiteDefaultMode = 1
+pkg net/http, const SameSiteDefaultMode SameSite
+pkg net/http, const SameSiteLaxMode = 2
+pkg net/http, const SameSiteLaxMode SameSite
+pkg net/http, const SameSiteStrictMode = 3
+pkg net/http, const SameSiteStrictMode SameSite
 pkg net/http, const StatusMisdirectedRequest = 421
 pkg net/http, const StatusMisdirectedRequest ideal-int
+pkg net/http, type Cookie struct, SameSite SameSite
+pkg net/http, type SameSite int
+pkg net/http, type Transport struct, MaxConnsPerHost int
 pkg net/http/httptrace, type ClientTrace struct, Got1xxResponse func(int, textproto.MIMEHeader) error
+pkg net/http/httptrace, type ClientTrace struct, WroteHeaderField func(string, []string)
 pkg os, const ModeIrregular = 524288
 pkg os, const ModeIrregular FileMode
 pkg os, const ModeType = 2399666176