4 ms·Sure, but they could also add x-tag to their resource list.by chenster 9y agoSure, but they could also add x-tag to their resource list.kinlan 9y agoIt is in the resource list. https://www.webcomponents.org/resources https://www.webcomponents.org/resourceschenster 9y agoNot a word on Polyfills https://www.webcomponents.org/polyfills https://www.webcomponents.org/polyfills