Hope someone has a good answer to this:
Why does Chrome (14.0) triggers the document ready and window load events when I refresh the page? Note that I am not talking about what happens when the new page loads, but before it has loaded. See the following code:
<form name="form1" method="post" action="tmp.aspx?a=1" id="form1"> <script type="text/javascript"> $(document).ready(function () { console.log('document/ready' + new Date()); }); $(window).load(function () { console.log('window/load' + new Date()); }); </script> <a href="tmp.aspx?a=1">tmp</a> </form>
When I first visit page I get two outputs on console, one for document/ready and one for window/load. When I refresh page two more are quickly output, and instantly after that two more (from new page view). If I instead just click the link (tmp.aspx) which goes directly back to same page, this does not happen.
I am sure there is a good explanation for this.
EDIT:
The additional calls to $(document).ready()
and $(window).load()
are made BEFORE that page has refreshed. So when I first load the page they methods are called once, then I hit refresh and BEFORE the page has reloaded the methods are called again. After that, when the page just have been reloaded, the methods are called a THIRD time.
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Answer
Behavior observed on 14.0.835.202. edit : (on Windows Seven x64)
It’s not the jquery fault : The DOMContentLoaded is fired another time just before page unload.
Simple test to check this :
function startpage() { console.log('page loaded'); } function unloadPage(){ console.log("page unloaded"); } document.addEventListener("DOMContentLoaded", startpage, false); window.onbeforeunload = unloadPage;
You should see after a refresh:
page loaded page loaded // should not be here and is not on Firefox. page unloaded loaded
In your console (with persistence on)
I think it’s simply a Chrome bug. Not a console one, as timestamping proves it’s not a duplicate.
Edit : the same Chrome version but running OSX seems ok (see comment below). It tends to confirm that it’s a bug.