Function assertNavigationAllowed

src/network-security.ts:178–189

(
  url: string | undefined,
  patterns: string[],
  ranges: NetworkRangeSet | null,
  allowedHosts?: readonly string[],
)

 * `html`-only request that never navigates).
 */
export const assertNavigationAllowed = (
  url: string | undefined,
  patterns: string[],
  ranges: NetworkRangeSet | null,
  allowedHosts?: readonly string[],
): void => {
  if (!url) return;
  const blocked = findBlockedNavigationUrl(url, patterns, ranges, allowedHosts);
  if (blocked) {
    throw new Forbidden(`Navigation to "${blocked}" is not allowed`);
  }
};