Default nonexistent labels in labelset to empty string

bfeb884d · Anton Tereshchenkov · 82805f50 · bfeb884d
Commit bfeb884d authored Dec 02, 2017 by Anton Tereshchenkov
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routing-tree.js static/routing-tree.js +4 -1

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--- a/static/routing-tree.js
+++ b/static/routing-tree.js
@@ -115,7 +115,10 @@ function matchLabels(matchers, labelSet) {
 // Compare single matcher to labelSet
 function matchLabel(matcher, labelSet) {
-  var v = labelSet[matcher.name];
+  var v = "";
+  if (matcher.name in labelSet) {
+    v = labelSet[matcher.name];
+  }
  if (matcher.isRegex) {
    return matcher.value.test(v)