My browser is set to send keep-alive asynchronous calls to the server every 20 seconds using window.setTimeout(). The issue arises when an alert() message appears, causing the AJAX calls to pause. If the user delays dismissing the popup, it may lead to the server incorrectly closing the login session.
We rely on alert() for displaying error messages, and we are constrained by this method due to product specifications.
Is there any possible workaround for this situation? Thank you
alert() and prompt() both halt the UI thread, causing all other actions to pause.
It is recommended to utilize modal windows instead, such as those found in jQueryUI.
As mentioned by @DreamingJoseph, utilizing functions like alert, prompt, and confirm can cause the UI to become unresponsive.
If you are adamant about using an alert, one workaround is to employ WebWorkers, which operate in a separate thread and do not impede the UI. While they have decent support, they may not function effectively on Internet Explorer versions older than 10.
Implementing this solution is quite intricate, so it may be easier to heed @DreamingJoseph's suggestion of opting for modal windows instead. They provide a simpler resolution to the issue at hand.
To delve deeper into the realm of WebWorkers, consult mdn.
Apologies, have you considered using a different method instead of an alert? Alerts may not be the most visually appealing or user-friendly option. A modal window, such as the one provided by jQuery UI, could provide a better user experience...
experiment with customizing alert behavior
window.alert = function(message) {
// insert code to trigger your custom dialog box here.
}
or you can also try this approach
alert = function(foo) {
// add some unique functionality
};
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