Function registerTemplate

src/ext/component.js:272–281

(tmpl)

    var fetchedBundles = new Map();

    function registerTemplate(tmpl) {
        var tagName = tmpl.getAttribute('component');
        if (!tagName || registered.has(tagName) || customElements.get(tagName)) return;
        registered.add(tagName);
        var script = tmpl.hasOwnProperty('_componentScript')
            ? tmpl._componentScript
            : (tmpl.getAttribute('_') || '');
        if (tmpl.hasAttribute('_')) tmpl.removeAttribute('_');
        registerComponent(tmpl, script || '');
    }

    function loadComponentBundle(url) {
        if (fetchedBundles.has(url)) return fetchedBundles.get(url);