From 58d3d0a63227366e9d06e1ec16285f64e1dfd006 Mon Sep 17 00:00:00 2001
From: Einar Paul Qvale <einarpaul.qvale@confirmit.com>
Date: Mon, 5 Nov 2018 10:53:18 +0100
Subject: [PATCH] Bugfix: Add back early return in setOffsets which was removed
 between 16.4.2 and 16.5.0. Fails in Edge in some scenarios.

---
 packages/react-dom/src/client/ReactDOMSelection.js | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/packages/react-dom/src/client/ReactDOMSelection.js b/packages/react-dom/src/client/ReactDOMSelection.js
index 9f247af15b4f5..1f584597514c2 100644
--- a/packages/react-dom/src/client/ReactDOMSelection.js
+++ b/packages/react-dom/src/client/ReactDOMSelection.js
@@ -153,6 +153,14 @@ export function getModernOffsetsFromPoints(
 export function setOffsets(node, offsets) {
   const doc = node.ownerDocument || document;
   const win = (doc && doc.defaultView) || window;
+
+  // Edge fails with "Object expected" in some scenarios.
+  // (For instance: TinyMCE editor used in a list component that supports pasting to add more,
+  // fails when pasting 100+ items)
+  if (!win.getSelection) {
+    return;
+  }
+
   const selection = win.getSelection();
   const length = node.textContent.length;
   let start = Math.min(offsets.start, length);