ajax call and sef urls - how to get correct path to url?

[Jimmi08]

Hi,
I have a frontend form with ajax call.

Everything works when I use the full path (legacy) to the plugin file. The needed file is in the plugin folder.

If I use pretty links, I need the full path to this file, of course, it stopped working.

I know that a base URL is possible with:

var url = e107.settings.basePath;

So I tried to put the plugin's folder name in the hidden field and I found that e_PLUGIN_DIR and e_PLUGIN_DIR_ABS are not used anymore. Is this correct?

What is correct way if I don't want to put full path in hidden field or so?

How to get actual e107_plugins folder name?

Thanks