From bb719097021d7403b905627bb7dc4c500046c655 Mon Sep 17 00:00:00 2001
From: jpinkney <josh.pinkney@mail.utoronto.ca>
Date: Mon, 20 Nov 2017 13:43:05 -0500
Subject: [PATCH] Fix for #18

---
 src/languageService/services/yamlHover.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/languageService/services/yamlHover.ts b/src/languageService/services/yamlHover.ts
index 49fc8650..87cae733 100644
--- a/src/languageService/services/yamlHover.ts
+++ b/src/languageService/services/yamlHover.ts
@@ -30,6 +30,9 @@ export class YAMLHover {
 
 		let offset = document.offsetAt(position);
 		let currentDoc = matchOffsetToDocument(offset, doc);
+		if(currentDoc === null){
+			return null;
+		}
 		let node = currentDoc.getNodeFromOffset(offset);
 		if (!node || (node.type === 'object' || node.type === 'array') && offset > node.start + 1 && offset < node.end - 1) {
 			return this.promise.resolve(void 0);