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I know this is not recommended, but I need it because I have an iframe inside the page who has the actual content and I want that when the users hits refresh button, iframe reloads not entire page.
I know I have to call onunload / onbeforeunload event, but I don't want to ask me if I want to leave the window, just don't.
Is that possible? I've got handled the F5 key, but I like to prevent refreshing from button too.
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UPDATE: I wrote this 5 years ago, browsers do different stuff now, you can still use this for testing your browser set, but your experience may vary from my old research.
Experimenting using jQuery, because I'm lazy.
Theoretically, preventing the default behavior should stop the event from doing whatever it is supposed to do. It doesn't work with the events in my example and has different results in different browsers. I put the Math.random() in to determine if the page has been reloaded or not. Because different browsers do different things, I highly recommend NOT using this in a production environment.
<body>
<p></p>
<script type="text/javascript">
$('p').append(Math.random());
$(window).bind({
beforeunload: function(ev) {
ev.preventDefault();
},
unload: function(ev) {
ev.preventDefault();
}
});
</script>
</body>
Using CTRL-R or F5 or Reload Button:
Firefox Prompt (you can tell I tested it on a Mac)
IE7 & IE8 Prompt
IE9 Prompt
In closing:
Yes, I did not test IE6, I deleted my VM which had it installed, I don't have a VM with IE10 beta installed, so you're out of luck on that too.
You might also experiment with cancelBubble and stopPropagation or maybe return false; might reveal something useful. I'm down with Jordan's reply that you shouldn't be trying to override the defaults, so I'm concluding my experiment here.
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