[WP] Slider looks correctly in preview, but when I add it to site it doesn't work
This article lists the reasons why RoyalSlider may work incorrectly when embedded to site and solutions about how to fix this.
Reasons why slider may not work (you might have multiple at once):
To check if this is your issue, simply go to RoyalSlider Global Settings page and enable checkbox that will load slider files on all pages. Learn more in including files article. If after enabling checkbox CSS and JS files are still not incuded, check issue #5 in this list.
2. You have two jQuery.js scripts on one page
This issue is caused when your theme or one of your plugins adds
jQuery directly with script tag. jQuery in WordPress should be
added only with
You need to find
<script/> tag that adds
jQuery, most likely it's in header.php or footer.php of your theme,
but can be anywhere. And replace with
Usually inproper script tag looks something like:
3. You have old (or non-default) version of jQuery
This issue is caused when your theme or one of your plugins
deregisters default jQuery script using
wp_deregister_script('jquery') and adds your own. If
Object has no method 'on' appears on your
To fix this find where your theme or one of your plugins
deregisters jQuery and leave just wp_enqueue_script part, or simply
change path to newer version of jQuery. Deregistering of script
usually looks something like this:
and should be replace just with:
wp_deregister_script('jquery'); wp_register_script('jquery', "http://some_path_here/jquery.min.js"); wp_enqueue_script('jquery');
The easiest way to find this part of code is to just download theme or plugins folder that causes the issue and do a bulk search through its files.
Learn more: Why Loading Your Own jQuery is Irresponsible?
If error comes from RoyalSlider script:
- Error like
Object has no method 'on'means that old jQuery script is used. Check section #3 in this aticle.
- Error like
Object has no method 'royalSlider'means that slider script is not included or you have two scripts on one page, check section #1 or #2.
- If any other error appears, please open support ticket and provide link to page with problem slider.
5. Your theme is missing wp_head() or wp_footer() call
If you use theme from trusted providers or you use default twenty* theme and you haven't modified code - 99% this is not your issue. wp_head() should be added in header, wp_footer() in footer, check WordPress codex for more info.
Easy way to fix 90% of issues
- Deactivate all plugins
- Switch to default theme
- Check if RoyalSlider now works correctly, if it doesn't - open private support ticket and provide admin access.
- Switch to your theme and start activating your plugins one by one to see which one causes the issue.
All issues above are caused third party themes and plugins that don't comply WordPress coding standarts. If you've found issue, contact the developer of that theme or plugin, so he can improve his work.
If you have problems figuring out this by yourself, please open support ticket and send link to page with broken RoyalSlider and I'll tell you what causes your issue.