I'm modifying a custom Property Editor and I require the ability to inject a stylesheet with custom attributes.

I'm using the umbraco.services.js module's assetsService.

Documentation for this service is provided here:

https://our.umbraco.com/apidocs/ui/#/api/umbraco.services.assetsService

I'm using the loadCss method, attempting to pass it an attribute as laid out below:

assetsService.loadCss("style.css", $scope, { crossorigin: 'anonymous' }, 10000 )

The stylesheet is being added to the page but without the attribute that I require:

<link href="styles.css" rel="stylesheet" class="lazyload" charset="utf-8">

Checking the umbraco.services.js module, it seems to be ignoring the attributes parameter within the loadCss method:

loadCss: function (path, scope, attributes, timeout) {
                path = convertVirtualPath(path);
                var asset = this._getAssetPromise(path);
                // $q.defer();
                var t = timeout || 5000;
                var a = attributes || undefined;
                if (asset.state === 'new') {
                    asset.state = 'loading';
                    LazyLoad.css(appendRnd(path), function () {
                        if (!scope) {
                            asset.state = 'loaded';
                            asset.deferred.resolve(true);
                        } else {
                            asset.state = 'loaded';
                            angularHelper.safeApply(scope, function () {
                                asset.deferred.resolve(true);
                            });
                        }
                    });
                } else if (asset.state === 'loaded') {
                    asset.deferred.resolve(true);
                }
                return asset.deferred.promise;
            }

I think this could be a bug with Umbraco but I thought I'd run it by here before raising an issue on GitHub. Has anybody here had experience with applying custom attributes using assetsServices.loadCss ?

Thanks in advance!