From e2a863405782709e8cd30227f8b1157acc30fa19 Mon Sep 17 00:00:00 2001
From: 黄玄 <huxpro@gmail.com>
Date: Mon, 2 May 2016 01:42:11 +0800
Subject: add refused-to-display tips in link-preview-overlay

---
 js/reveal.js | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'js')

diff --git a/js/reveal.js b/js/reveal.js
index 10c609e..e772516 100644
--- a/js/reveal.js
+++ b/js/reveal.js
@@ -1500,6 +1500,9 @@
 			'<div class="spinner"></div>',
 			'<div class="viewport">',
 				'<iframe src="'+ url +'"></iframe>',
+				'<small class="viewport-inner">',
+				'This link is refused to display in a frame due to its policy',
+				'</small>',
 			'</div>'
 		].join('');
 
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