Actually this is what i did on the js_composer/assets/js/backend/composer-view.js file, I changed this block:
render: function () {
var $shortcode_template_el = $( '#vc_shortcode-template-' + this.model.get( 'shortcode' ) );
if ( $shortcode_template_el.is( 'script' ) ) {
this.html2element( _.template( $shortcode_template_el.html(),
this.model.toJSON(),
vc.templateOptions.default ) );
}
To:
render: function () {
var $shortcode_template_el = $( '#vc_shortcode-template-' + this.model.get( 'shortcode' ) );
if ( $shortcode_template_el.is( 'script' ) ) {
var newHtmlCode = _.template( $shortcode_template_el.html(), this.model.toJSON(), vc.templateOptions.default );
if(!_.isString(newHtmlCode)){
newHtmlCode = $shortcode_template_el.html();
}
this.html2element( newHtmlCode );
}
Maybe this is fixed on the latest version of visual composer, I was working with an old version, but i recently updated and i haven’t tested it yet.
Hope this is useful for someone else.