SSL certificate issue

Hello,

My site is http://thelumberjacks.com and I’m in the process of installing an SSL on my site. In my tests I’m getting the following errors:

Insecure URL: http://thelumberjacks.com/wp-content/plugins/weptile-image-slider-widget/css/weptile-image-slider-widget.css?ver=4.4.3
Found in: https://thelumberjacks.com/

Insecure URL: http://thelumberjacks.com/wp-content/plugins/weptile-image-slider-widget/nivo-slider/nivo-slider.css?ver=4.4.3
Found in: https://thelumberjacks.com/

Insecure URL: http://thelumberjacks.com/wp-content/plugins/weptile-image-slider-widget/js/weptile-image-slider-widget.js?ver=4.4.3
Found in: https://thelumberjacks.com/

Insecure URL: http://thelumberjacks.com/wp-content/plugins/weptile-image-slider-widget/nivo-slider/jquery.nivo.slider.pack.js?ver=4.4.3

My programmer found this:

In the weptile-image-slider-widget plugin, the developer used the defined constant, WP_PLUGIN_URL to point to the css files. The PHP statements look like this:

wp_register_style(‘weptile-image-slider-widget-nivo-slider-theme-‘.$slider_options[‘theme’], WP_PLUGIN_URL . ‘/’.$slider_options[‘theme’].’/’.$slider_options[‘theme’].’.css’);

Being a defined constant, WP_PLUGIN_URL is always going to be “http:[whatever].”

Instead, as pointed out in the support item, https://wordpress.org/support/topic/dont-use-wp_plugin_url, the developer should have used the function plugins_url().

So the question is… Can we change the definition of WP_PLUGIN_URL without anything getting effected? Or might it be best for your to change the code?

Thanks so much for your help!

https://wordpress.org/plugins/weptile-image-slider-widget/