From e2405b938887b982e900945f2b45d9c5ab820da9 Mon Sep 17 00:00:00 2001
From: Greg Fodor <gfodor@gmail.com>
Date: Fri, 20 Jul 2018 22:43:30 +0000
Subject: [PATCH] PR feedback to harden FxR check

---
 src/utils/vr-caps-detect.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/utils/vr-caps-detect.js b/src/utils/vr-caps-detect.js
index 90c4ac6b5..baed879b0 100644
--- a/src/utils/vr-caps-detect.js
+++ b/src/utils/vr-caps-detect.js
@@ -50,7 +50,7 @@ export async function getAvailableVREntryTypes() {
   // This needs to be kept up-to-date with the latest browsers that can support VR and Hubs.
   // Checking for navigator.getVRDisplays always passes b/c of polyfill.
   const isWebVRCapableBrowser = window.hasNativeWebVRImplementation;
-  const isFirefoxReality = "buildID" in navigator && isWebVRCapableBrowser;
+  const isFirefoxReality = window.orientation === 0 && "buildID" in navigator && isWebVRCapableBrowser;
   const isInHMD = isOculusBrowser || isFirefoxReality;
 
   const isDaydreamCapableBrowser = !!(isWebVRCapableBrowser && browser.name === "chrome" && !isSamsungBrowser);
-- 
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