In my experience, there are a number of reasons it might not be working.
- The script is incorrectly being added. They should use the wp_enqueue_script function in the wp_enqueue_scripts hook
- The call to that function is correct, but there is a missing dependency so it fails to be added
- The actual script/function is incorrect and it doesn’t run properly
You didn’t mention the script or what to expect on that page so I can’t really be certain what to look for. But if you can provide more information, such as which script you want and what it should do, maybe I can dig a bit further. If you can add the code for how it is getting added that would also help
@bvbaked Yeah, that makes sense and I appreciate your input. For context, the tool page I’m referring to is https://devicexa.com/tools/gamepad-tester/. It’s a JavaScript-based gamepad tester that listens for controller input and updates the UI in real time. Outside WordPress it works perfectly, but inside WordPress it becomes inconsistent sometimes the script loads properly, and other times parts of the interface don’t respond or freeze.
I am already using wp_enqueue_script, so the script is being loaded the WordPress way, but I suspect the issue might be related to script dependencies, load order, or possible conflicts with the theme or optimization plugins. It could also be that caching or minification is altering the execution order of the script, or the theme is interfering with the DOM before the script fully initializes. Right now I’m enqueueing it without any dependencies, so I’m considering adding things like jquery if needed, and also making sure the initialization runs after the full page load using DOMContentLoaded or window.onload. I’m also planning to fully test it with all optimization plugins completely disabled to rule out any interference. If you’ve seen this kind of issue before where a tool works outside WordPress but behaves unpredictably inside it, I’d really like to know what you would check first whether it’s enqueue order, plugin conflicts, or script execution timing.
If you are using the correct hook then the script will be added server side. That code should always run in the same order so you wouldn’t get the inconsistencies you note. All your scripts should be getting added in the same order and since you don’t have dependencies then it should always be getting included. There is no reason to include jquery as a dependency unless you use it so that would depend on how you wrote it. If this was the problem you might see it in the console with jquery related errors
making sure the initialization runs after the full page load using DOMContentLoaded or window.onload
If you are not having it run on one of the load events, you definitely should. The problem could just be a race condition where your script is running too early and what it needs on page isn’t available. That might explain why you get inconsistent loading as well as it depends on the loading time
I’d really like to know what you would check first whether it’s enqueue order, plugin conflicts, or script execution timing.
Order matters when scripts rely on something else being loaded. That’s what setting a dependency will do – it puts the scripts on the page in the right order. Conflicts and timing can be more difficult as these can sometimes be more silent. If you’re worried about an optimization plugin (sometimes they can jumble things up) you may be able to exclude it and see if that helps any.
I plugged in a control and refreshed a few times and it always seem to load fine and track my input
@bvbaked Appreciate you taking the time to actually test it, that helps a lot. it turned out to be a timing issue. I wrapped the initialization in DOMContentLoaded and excluded the script from optimization, and now it’s working consistently. Appreciate the guidance
