From a752e7372021c1eea5df433f08e53fae1983e8ec Mon Sep 17 00:00:00 2001
From: Simon Tatham <anakin@pobox.com>
Date: Wed, 3 Apr 2013 19:04:00 +0000
Subject: Try to give a more friendly message if anything goes wrong during
 puzzle startup. The puzzle web pages now enclose the whole puzzle (buttons,
 canvas, permalinks) in a div set to display:none, and instead display an
 apologetic message saying 'sorry, it didn't work'; then, if we get through
 the whole init function without crashing, we show the puzzle and hide the
 apology.

[originally from svn r9802]
---
 html/jspage.pl | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'html')

diff --git a/html/jspage.pl b/html/jspage.pl
index 7172800..376d39a 100755
--- a/html/jspage.pl
+++ b/html/jspage.pl
@@ -71,6 +71,7 @@ ${unfinishedheading}
 ${unfinishedpara}
 
 <hr>
+<div id="puzzle" style="display: none">
 <p align=center>
   <input type="button" id="new" value="New game">
   <input type="button" id="restart" value="Restart game">
@@ -98,6 +99,13 @@ ${unfinishedpara}
   <a id="permalink-desc">by game ID</a>
   <a id="permalink-seed">by random seed</a>
 </p>
+</div>
+<div id="apology">
+Sorry, this Javascript puzzle doesn't seem to work on your web
+browser. Perhaps you have Javascript disabled, or perhaps your browser
+doesn't provide a feature they depend on. These puzzles have been
+successfully run in Firefox 19 and Chrome 25.
+</div>
 <hr>
 
 ${instructions}
-- 
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