I am writing a plugin to a CMS (umbraco) and I wish to attach a warning dialog to various actions on the page, one such action is clicking a link (JavaScript links), in most browsers the following code works well:
$(".propertypane").delegate("a, a div", "click", function () { window.onbeforeunload = confirmNavigateAway; });
The following is an issue in IE because IE appears to trigger onbeforeunload
event when any link is clicked, even though the link is not navigating away.
I've set up an example here: http://jsfiddle.net/DETTG/8/
Note: I do not have control over the ajax controls within the propertypane
, they're written by third parties.
The beforeunload event is fired when the window, the document and its resources are about to be unloaded. The document is still visible and the event is still cancelable at this point. This event enables a web page to trigger a confirmation dialog asking the user if they really want to leave the page.
Cancelable: The beforeunload event can be canceled by user interaction: // by https://developer.mozilla.org/en-US/docs/Web/Events/beforeunload#Example window. addEventListener("beforeunload", function(event) { event. preventDefault(); // Cancel the event as stated by the standard.
Maybe this page will help you?
If you remove "href" then it will work. But then you would need to style it as a link element and add the attribute onclick if you want to execute a function. Here is the updated version: http://jsfiddle.net/DETTG/34/
<a onclick="alert('do some ajax');" style="color:blue; text-decoration:underline; cursor:pointer">javascript</a>
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