Skip to content

Instantly share code, notes, and snippets.

Show Gist options
  • Star 0 You must be signed in to star a gist
  • Fork 0 You must be signed in to fork a gist
  • Save balupton/867260 to your computer and use it in GitHub Desktop.
Save balupton/867260 to your computer and use it in GitHub Desktop.
Demonstrates an issue with Safari 5 and its handling of hashes with replaceState.
<html>
<head>
<title>Safari Hash ReplaceState History Traversal Bug</title>
</head>
<body>
<p>This demo demonstrates an issue with Safari 5.0.4 (6533.20.27) handing of hashes and replace state. When a hash is set, and then replaced using replaceState the history list are then broken, when traversing back the hash does not change.</p>
<p>Note: The issue requires a clean history list, as such this should always be opened in a new tab/window where there are no prior history items.</p>
<p>Reported by <a href="http://balupton.com">Benjamin Lupton</a> author of <a href="http://github.com/balupton/history.js">History.js</a></p>
<button id="bug">bug</button>
<button id="workaround">workaround</button>
<button id="reset">reset</button>
<textarea id="log" style="width:100%;height:200px;margin-top:1em;"></textarea>
<script type="text/javascript">
(function(){
window.onpopstate = function(event) {
var message = ("onpopstate: location: " + document.location.href);
document.getElementById('log').innerHTML += message+"\n\n";
};
window.onhashchange = function(event) {
var message = ("onhashchange: location: " + document.location.href);
document.getElementById('log').innerHTML += message+"\n\n";
};
document.getElementById('bug').onclick = function(){
setTimeout(function(){
document.location.hash = Math.random();
},1e3);
setTimeout(function(){
history.replaceState(null,'','?blah');
},2e3);
setTimeout(function(){
history.back(); // should take us to the initial page, it doesn't
},3e3);
};
document.getElementById('workaround').onclick = function(){
setTimeout(function(){
history.pushState(null,'','#'+Math.random());
},1e3);
setTimeout(function(){
history.replaceState(null,'','?blah');
},2e3);
setTimeout(function(){
history.back(); // will take us to the initial page
},3e3);
};
document.getElementById('reset').onclick = function(){
document.location.href = document.location.href.replace(/[\#\?].*/,"");
};
})();
</script>
</body>
</html>
@balupton
Copy link
Author

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment