23 lines
853 B
JavaScript
23 lines
853 B
JavaScript
// Convert an absolute or relative URL to an absolute URL with the current origin. It only
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// processes absolute HTTP/HTTPS URLs or relative URLs like '/xxx' or '//host/xxx'.
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// NOTE: Keep this function in sync with clone_script.tmpl
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export function toOriginUrl(urlStr) {
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try {
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if (urlStr.startsWith('http://') || urlStr.startsWith('https://') || urlStr.startsWith('/')) {
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const {origin, protocol, hostname, port} = window.location;
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const url = new URL(urlStr, origin);
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url.protocol = protocol;
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url.hostname = hostname;
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url.port = port || (protocol === 'https:' ? '443' : '80');
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return url.toString();
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}
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} catch {}
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return urlStr;
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}
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window.customElements.define('origin-url', class extends HTMLElement {
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connectedCallback() {
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this.textContent = toOriginUrl(this.getAttribute('data-url'));
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}
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});
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