Andres Santana
40 lines
1.1 KiB
JavaScript
40 lines
1.1 KiB
JavaScript
/** Origins allowed to receive messages from this iframe. */
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export const ALLOWED_PARENT_ORIGINS = [
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'https://horizons.hostinger.com',
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'https://horizons.hostinger.dev',
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'https://horizons-frontend-local.hostinger.dev',
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'http://localhost:4000',
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];
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/**
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* Resolves the parent frame origin from `ancestorOrigins` or `document.referrer`.
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* @returns {string | null}
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*/
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export function getParentOrigin() {
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if (window.location.ancestorOrigins && window.location.ancestorOrigins.length > 0) {
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return window.location.ancestorOrigins[0];
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}
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if (document.referrer) {
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try {
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return new URL(document.referrer).origin;
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} catch {
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console.warn('[plugin] Invalid referrer URL:', document.referrer);
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}
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}
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return null;
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}
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/**
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* Sends a typed message to the parent frame when the origin is allowlisted.
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* @param {string} type - A {@link ParentMessage} value.
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* @param {object} [payload]
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*/
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export function postToParent(type, payload = {}) {
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const parentOrigin = getParentOrigin();
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if (parentOrigin && ALLOWED_PARENT_ORIGINS.includes(parentOrigin)) {
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window.parent.postMessage({ type, payload }, parentOrigin);
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}
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}
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