Jquery UI Dialog - missing close icon

javascript

prompt-engineering

best-practices

dom-manipulation

byAnton Shumikhin·Feb 27, 2025

Typically, the absent close icon in a jQuery UI Dialog might be due to an overlooked jQuery UI CSS link. Please ensure the following line is in your page's <head> tag:

<link rel="stylesheet" href="https://code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">

This inclusion gives the necessary styles to the dialog's visual components, such as the close button. Without it, some icons could vanish.

Version compatibility

Double-check that your mix of jQuery, Bootstrap, and jQuery UI versions play nicely together. Like a well-friendly orchestra 🎻 - if one is off, the output can be discordant - such as a missing close icon because of version clashes. The correct load sequence should be: jQuery first, followed by Bootstrap, and lastly jQuery UI.

Script sequence matters

Ever seen a 🎞️ movie revealing the end at the start? Pretty confusing, right? Same with scripts:

jquery.js
bootstrap.min.js
jquery-ui.js

Switching them around could lead to compatibility issues. You don't want Bootstrap and jQuery UI fighting over the🍿 popcorn (tooltips), do you?

Enter noConflict mode

Say hello to jQuery.noConflict() if Bootstrap and jQuery UI tooltips have fallen out. The noConflict method acts as a 🕊️ peacemaker, letting both libraries co-exist peacefully, without treading on each other's toes.

Reducing repetition

When pulling down jQuery UI, customize your download to exclude components doubling up with Bootstrap, e.g., tooltips. This avoids redundancy and possible clashes ("But I want to do the 🎭 tooltips!" - Bootstrap).

CSS to the rescue

Don't crack open jQuery UI's JS files, rather, add your custom CSS to add style and give the close button its rightful place. This could be your workaround for icon display issues while keeping your core files unchanged and clean.

Dialog's open event - also welcome at parties

If CSS isn't playing ball, consider tweaking the JavaScript open event for the dialog. Here's a script that would add the missing close button span if it forgot to show up to the party 🎉.

$("#dialog").dialog({
  open: function() {
    var closeBtn = $('.ui-dialog-titlebar-close');
    closeBtn.html('<span class="ui-button-icon ui-icon ui-icon-closethick"></span>');
  }
});

Your duty: report and check updates

Suspect a bug in jQuery UI? Report it to the community - the squeaky 🛀 bathtub gets fixed, the silent one doesn't. Always see if there's a newer, bug-fixed version of jQuery UI for your project.

Looking back to move forward

Switch backward to an older version of jQuery UI if the horrid close icon issue persists with the latest version. Sometimes, old is gold.

Custom theme compatibility

Created a unique jQuery UI theme? Ensure it doesn't scupper your icons by using the ThemeRoller or comparing it against the default theme. You wouldn't want your creations battling ⚔️ each other, would you?