Does the Onload Event Fire on Browser Back Button Click?
When targeting major browsers such as Firefox, Opera, Safari, and IE, the onload event in JavaScript fails to trigger when a page is loaded via the back button. It only fires during the initial page load.
Achieving Cross-Browser Compatibility
To overcome this restriction and handle back button events in all major browsers, a creative solution has been discovered using jQuery. By adding an empty onunload event listener to the body, Safari, Opera, and Mozilla inadvertently trigger a page reload. This action mimics the desired onload functionality.
Here's a simple code example:
<body onunload="">
<script type="text/javascript">
alert('first load / reload');
window.onload = function(){alert('onload')};
</script>
<a href="http://stackoverflow.com">click me, then press the back button</a>
</body>Upon clicking the link and pressing the back button, you'll observe that the JavaScript alerts are triggered, indicating the page reload.
Consideration
Keep in mind that this workaround can potentially slow down your page for users. It's recommended to carefully evaluate whether this approach truly aligns with your application's needs.
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