use of Fontawesome not possible

[MaggiWuerze]

if you have fontawesome included in your page and create nodes with fontawesome classes instead of glyphicons (removed in later Bootstrap versions) it either displays nothing, squares or ignores the classes entirely and creates the nodes with standard glyphicon classes instead.

[skateman]

@MaggiWuerze can you please provide a working reproducer on codepen or jsfiddle? Thanks

[MaggiWuerze]

can do, but i just tried to do it via the $('#tree').treeview() method instead of node json data and the classes are accepted from there. only the icons for collapse and expand are not switching, it always shows the expand icon.

my treeview():

 $('#tree').treeview({
    dataUrl: {url: "getNodes.json"},
    levels: 4,  
    showBorder: false,  
    backColor: "#7386D5",  
    onhoverColor: "#445387",  
    selectedColor: "#F5F5F5",  
    expandIcon: "fas fa-caret-down",  
    showIcon: false,  
    collapseIcon: "fas fa-caret-up"  
                });

[skateman]

fas fa-caret-down -> fa fa-caret-down