CSS JS Loader [Support Thread]

[Louis]

Good day all,

Does anybody have a working copy of the CSS/JS loader for version 157 (157c) or could you perhaps suggest an alternative to this? I have my website sorted out well in terms of technical issues but I still have a couple of seconds lost on JS and CSS evaluation and scripting. If I can get this sorted out I will have a very smooth running and fast website.

Please, any assistance will be appreciated.

[simon1066]

Good day all,

Does anybody have a working copy of the CSS/JS loader for version 157 (157c) or could you perhaps suggest an alternative to this? I have my website sorted out well in terms of technical issues but I still have a couple of seconds lost on JS and CSS evaluation and scripting. If I can get this sorted out I will have a very smooth running and fast website.

Please, any assistance will be appreciated.

Direct from the devs website: https://www.numinix.com/zen-cart-plu.../css-js-loader

[balihr]

Do yourself a favor and DO NOT install that plugin. It causes more headaches than it's worth, and you can actually do a much better job yourself (manually) than you'll ever get from this plugin...

[Louis]

Do yourself a favor and DO NOT install that plugin. It causes more headaches than it's worth, and you can actually do a much better job yourself (manually) than you'll ever get from this plugin...

Exactly what i discovered. Any pearls of wisdom you might want to share with me. I am already using the (Link Preload) option for my main Stylesheet and the jquery.min.js files. Any other advice?

[balihr]

I've recently discussed it with someone here, but can't remember what the thread was about... Depending on your level of knowledge, you could take this very far, or you could simply try to do as much as you can by:
- combining all stylesheet_XYZ.css files into one single file (no need for multiple hits)
- minifying all of your CSS files (there's tons of free online services to do that)
- combine your JS files as much as you can, but be careful
- minify the combined files (again, tons of online services)

And, of course, remove any files (or even lines) that are not used. If a js file is used exclusively on a product_info page, consider moving the file to includes/modules/pages/product_info/ so it doesn't load on every single page.

I'm not a fan of the template you're using and I don't really know how much room for improvement there is, but run PageSpeed tests and follow suggestions until you get the best results you can. Yeah, you won't get perfect results, but you can get very close...

[Louis]

Thank you for your reply and advice. I am busy with the minifying process. As for combining the files, I believe this must be done to a limited degree as I am running HTTP/2 and not HTTP/1.1 HTTP/2 can do simultaneous processing of files and by combing the files we will reduce this advantage gained.

I have already modified the template in a number of places, busy making it my own. At least on PAGESPEED i am receiving a 89% speed index on the majority of my product pages with JS identified as the main culprit for not doing better. Let's see what happens after I run all the files through the minify process. I also just found a number of JS files that can be moved to the relevant page sections. (Thanks for the reminder of this possibility, sometimes you stare at the big mountain and miss the pathway to the top (smile)

Again, thank you for your responses.

[simon1066]

In preparation for moving to PHP 8.0 I'm working my way through various undefined array and variable warnings, mainly due to old un-maintained plugins. The cause of this warning

PHP Warning: Undefined variable $manufacturers_id in D:\wamp64\www\mydomain.co.uk\includes\modules\featured_products.php on line 21

appears to be the removal, by this plugin, of the $manufacturers_id which would usually be defined in html_header.php. I'm not sure how others have approached this but I have added this line back into that file.

$manufacturers_id = (isset($_GET['manufacturers_id'])) ? $_GET['manufacturers_id'] : ''; 

[Louis]

Thanks for the reply, found this one as well but it is full of PHP warnings on php7.4 My logbook literally grew by thousands per day. I had to uninstall again.

I am using 157c on php7.4 with SQL5.7 and HTTP/2