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-rw-r--r--tools/http2_interop/http2interop.go1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/http2_interop/http2interop.go b/tools/http2_interop/http2interop.go
index abd7d4cf7d..1276a71afc 100644
--- a/tools/http2_interop/http2interop.go
+++ b/tools/http2_interop/http2interop.go
@@ -330,6 +330,7 @@ func http2Connect(c net.Conn, sf *SettingsFrame) error {
if _, err := c.Write([]byte(Preface)); err != nil {
return err
}
+
if sf == nil {
sf = &SettingsFrame{}
}