fix(measurex): avoid data race with HTTP request headers (#573)

Closes https://github.com/ooni/probe/issues/1859
2021-11-05 11:11:43 +01:00
parent aa27bbe33f
commit 60cfa68b5a
1 changed files with 1 additions and 1 deletions
@@ -513,7 +513,7 @@ func (mx *Measurer) httpClientDo(ctx context.Context,
 	if err != nil {
 		return nil, err
 	}
-	req.Header = epnt.Header
+	req.Header = epnt.Header.Clone() // must clone because of parallel usage
 	const timeout = 15 * time.Second
 	ol := NewOperationLogger(mx.Logger,
 		"%s %s with %s/%s", req.Method, req.URL.String(), epnt.Address, epnt.Network)