[Plugin: CMS Tree Page View] Update Plugins with Non-Core Functions (Mixed Content Pop-ups)

Referencing: https://codex.www.ads-software.com/Determining_Plugin_and_Content_Directories

Many of our sites are on SSL (https://), and therefore, apparently, because you use the following, we get many mixed content pop-ups in Internet Explorer (used by our users! not us ?? ) for your plugins.

Examples:

WP_CONTENT_DIR  // no trailing slash, full paths only
WP_CONTENT_URL  // full url 

WP_PLUGIN_DIR  // full path, no trailing slash
WP_PLUGIN_URL  // full url, no trailing slash

As Revised

define( "CMS_TPV_URL", plugins_url() . '/cms-tree-page-view/');

Already referenced the issue here:
https://www.ads-software.com/support/topic/plugin-nice-navigation-hardlinking-to-http-mixed-content-pop-ups

https://www.ads-software.com/extend/plugins/cms-tree-page-view/