diff --git a/godoc/page.go b/godoc/page.go
index 50e969009d..79b1e19639 100644
--- a/godoc/page.go
+++ b/godoc/page.go
@@ -51,7 +51,7 @@ func allowShare(r *http.Request) bool {
 		return true
 	}
 	switch r.Header.Get("X-AppEngine-Country") {
-	case "", "ZZ", "HK", "CN", "RC":
+	case "", "ZZ", "CN":
 		return false
 	}
 	return true
diff --git a/godoc/proxy/proxy.go b/godoc/proxy/proxy.go
index 74abacbd48..4d9ac66b21 100644
--- a/godoc/proxy/proxy.go
+++ b/godoc/proxy/proxy.go
@@ -162,7 +162,7 @@ func allowShare(r *http.Request) bool {
 		return true
 	}
 	switch r.Header.Get("X-AppEngine-Country") {
-	case "", "ZZ", "HK", "CN", "RC":
+	case "", "ZZ", "CN":
 		return false
 	}
 	return true
diff --git a/playground/common.go b/playground/common.go
index 16591a7a3a..d8c28052d7 100644
--- a/playground/common.go
+++ b/playground/common.go
@@ -56,7 +56,7 @@ func allowShare(r *http.Request) bool {
 		return true
 	}
 	switch r.Header.Get("X-AppEngine-Country") {
-	case "", "ZZ", "HK", "CN", "RC":
+	case "", "ZZ", "CN":
 		return false
 	}
 	return true