From c3f69d75a76851748068ebc5fda0e347573757a3 Mon Sep 17 00:00:00 2001
From: Blair MacIntyre <bmacintyre@mozilla.com>
Date: Fri, 20 Apr 2018 11:47:55 -0400
Subject: [PATCH] bug in internal anchor removal

---
 polyfill/XRSession.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/polyfill/XRSession.js b/polyfill/XRSession.js
index 99b3552..de1e2d1 100644
--- a/polyfill/XRSession.js
+++ b/polyfill/XRSession.js
@@ -82,9 +82,9 @@ export default class XRSession extends EventHandlerBase {
 	end(){
 		if(this._ended) return
 		for (var i = 0; i< this._frameAnchors.length; i++) {
-			this._display._reality._removeAnchor(this._frameAnchors[i])			
+			this._display._reality._removeAnchor(this._frameAnchors[i].uid)			
 		}
-		this._frameAnchors = null;
+		this._frameAnchors = [];
 		this._ended = true
 		this._display._stop()
 		return new Promise((resolve, reject) => {