From ffa76d02dcd0048b469bc74bc5a31185b5dcef54 Mon Sep 17 00:00:00 2001
From: Hector Ramos <hramos@fb.com>
Date: Tue, 30 May 2017 13:17:03 -0700
Subject: [PATCH] Only run tabbing logic on docs that contain blocks

Summary:
Builds upon #14212
Closes https://github.com/facebook/react-native/pull/14213

Differential Revision: D5149113

Pulled By: hramos

fbshipit-source-id: 99684bbb3bcae0e6061641373c6af7446729d7bd
---
 website/src/react-native/js/scripts.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/website/src/react-native/js/scripts.js b/website/src/react-native/js/scripts.js
index e82efb3da..adf2deeaa 100644
--- a/website/src/react-native/js/scripts.js
+++ b/website/src/react-native/js/scripts.js
@@ -202,6 +202,10 @@
   }
 
   function guessPlatformAndOS() {
+    if (!document.querySelector('block')) {
+      return;
+    }
+
     // If we are coming to the page with a hash in it (i.e. from a search, for example), try to get
     // us as close as possible to the correct platform and dev os using the hashtag and block walk up.
     var foundHash = false;