From d2ecf7da71512b8c2b7904023357d5b8d10560d5 Mon Sep 17 00:00:00 2001
From: Tony Garnock-Jones <tonyg@leastfixedpoint.com>
Date: Thu, 20 Jun 2019 22:45:04 +0100
Subject: [PATCH] Warning if no parent nodes can be found (can we do better?)

---
 packages/driver-browser-ui/src/index.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/packages/driver-browser-ui/src/index.js b/packages/driver-browser-ui/src/index.js
index b160f87..bacea3d 100644
--- a/packages/driver-browser-ui/src/index.js
+++ b/packages/driver-browser-ui/src/index.js
@@ -114,6 +114,10 @@ spawn named 'UIFragmentFactory' {
       orderBy = newOrderBy;
       anchorNodes = (selector !== null) ? selectorMatch(document, selector) : [];
 
+      if (anchorNodes.length === 0) {
+        console.warn('UIFragment found no parent nodes matching selector', selector, fragmentId);
+      }
+
       anchorNodes.forEach((anchorNode) => {
         let insertionPoint = findInsertionPoint(anchorNode, orderBy, fragmentId);
         htmlToNodes(anchorNode, html).forEach((newNode) => {