From a8e7ef79cbdd70b3ac2357577b973b79074a4a12 Mon Sep 17 00:00:00 2001
From: Kristian Aune <kraune@verizonmedia.com>
Date: Fri, 19 Aug 2022 16:25:00 +0200
Subject: Not all proton trace children have traces

---
 client/js/app/src/app/pages/querybuilder/TransformVespaTrace.jsx | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/client/js/app/src/app/pages/querybuilder/TransformVespaTrace.jsx b/client/js/app/src/app/pages/querybuilder/TransformVespaTrace.jsx
index 7299f1cb777..7a630a017cb 100644
--- a/client/js/app/src/app/pages/querybuilder/TransformVespaTrace.jsx
+++ b/client/js/app/src/app/pages/querybuilder/TransformVespaTrace.jsx
@@ -128,6 +128,10 @@ function createProtonSpans(children, parentID) {
     [{ refType: 'CHILD_OF', traceID: traceID, spanID: parentID }]
   );
   data.push(newSpan);
+  // eslint-disable-next-line no-prototype-builtins
+  if (!child.hasOwnProperty('traces')) {
+    return;
+  }
   let traces = child['traces'];
   for (let k = 0; k < traces.length; k++) {
     let trace = traces[k];
-- 
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