plotly
diff --git a/‎src/lib/coerce.js
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+3Lines changed: 3 additions & 0 deletions b/‎src/lib/coerce.js
Copy file name to clipboardExpand all lines: src/lib/coerce.js
+3Lines changed: 3 additions & 0 deletions
@@ -406,6 +406,9 @@ exports.coerceSelectionMarkerOpacity = function(traceOut, coerce) {
     if(!traceOut.marker) return;
 
     var mo = traceOut.marker.opacity;
+    // you can still have a `marker` container with no markers if there's text
+    if(mo === undefined) return;
+
     var smoDflt;
     var usmoDflt;