// to use with fields, as the default pattern only checks for `:`, export const DEFAULT_TEXTFIELD_URL_PATTERN = 'https?://.*'; export default function isValidUrl(url: string): boolean { const validProtocols = ['http:', 'https:']; try { const validationObject = new URL(url); if ( validationObject.protocol === '' || validationObject.hostname === '' || !validProtocols.includes(validationObject.protocol) ) { return false; } } catch (e) { return false; } return true; }