From 366ee8518fe53e821e809812ba80e7696861c93c Mon Sep 17 00:00:00 2001
From: Guillaume Gomez <guillaume1.gomez@gmail.com>
Date: Thu, 8 Mar 2018 00:11:17 +0100
Subject: [PATCH] Fix blink when main theme is selected

---
 src/librustdoc/html/static/storage.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/librustdoc/html/static/storage.js b/src/librustdoc/html/static/storage.js
index 7e9cfbd676347..c8571e4cf9181 100644
--- a/src/librustdoc/html/static/storage.js
+++ b/src/librustdoc/html/static/storage.js
@@ -44,8 +44,12 @@ function switchTheme(styleElem, mainStyleElem, newTheme) {
     var fullBasicCss = "rustdoc" + resourcesSuffix + ".css";
     var fullNewTheme = newTheme + resourcesSuffix + ".css";
     var newHref = mainStyleElem.href.replace(fullBasicCss, fullNewTheme);
-    var found = false;
 
+    if (styleElem.href === newHref) {
+        return;
+    }
+
+    var found = false;
     if (savedHref.length === 0) {
         onEach(document.getElementsByTagName("link"), function(el) {
             savedHref.push(el.href);