Urls/file paths for icons including www?

I changed my domain name settings to redirect to urls without www ( domain.com instead of www.domain.com ). But then all icons in the maps were missing/broken. Looks like they have a file path including www, is it hard coded somewhere? Or is it a local problem (but I don´t see how I can change it only for Zh OpenStreetMap)? All other files/images on the web page are working.

I don't store full path.
I use joomla's constants.

For example, my demo site
joomla.zhuk.cc/index.php/zhosmmap-main/o...-map-with-placemarks
and it has alias (configured on server)
www.joomla.zhuk.cc/index.php/zhosmmap-ma...-map-with-placemarks

But it does not have redirect.

Icons displayed in both cases, and in page source you can see correct links to icons.

Probably for redirect case you need configure joomla in this case. Or probably you didn't create full redirect config