From ae2881404116d8ee655da7ffa2074f22cfe68fed Mon Sep 17 00:00:00 2001
From: Daniel Imms <tyriar@tyriar.com>
Date: Fri, 16 Feb 2018 21:34:57 -0800
Subject: [PATCH] Check for valid coords before getting word at coords

Fixes #1287
---
 src/SelectionManager.ts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/SelectionManager.ts b/src/SelectionManager.ts
index dc1d0682..5aa145e6 100644
--- a/src/SelectionManager.ts
+++ b/src/SelectionManager.ts
@@ -634,6 +634,11 @@ export class SelectionManager extends EventEmitter implements ISelectionManager
    * @param coords The coordinates to get the word at.
    */
   private _getWordAt(coords: [number, number], allowWhitespaceOnlySelection: boolean): IWordPosition {
+    // Ensure coords are within viewport (eg. not within scroll bar)
+    if (coords[0] >= this._terminal.cols) {
+      return null;
+    }
+
     const bufferLine = this._buffer.lines.get(coords[1]);
     if (!bufferLine) {
       return null;