Why is the Native `onload` Event Not Firing for Script Tags Loaded with jQuery?

Native onload Event Not Firing for Script Tags Loaded with jQuery

When attempting to load a sequence of scripts in a specific order, developers may encounter a scenario where the native onload event fails to trigger. This issue arises when using jQuery to append the script element to the DOM.

To resolve this problem, modify the following code:

el.onload = function(script){ ...
el.src = script;

This code snippet incorrectly assigns the src attribute after the onload event function. Instead, it should be modified as follows:

el.onload = function(script){ ...
el.src = script;

In addition, ensure that the script element is appended to the DOM before attaching the onload event:

$body.append(el);
el.onload = function() { ...
el.src = script;

It's important to note that readystate handling is required for IE support. Alternatively, using jQuery's getScript() method is recommended: http://api.jquery.com/jQuery.getScript/.

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