Function decodeBasic

packages/core/test-servers/src/worker.ts:46–54

(
  header: string | null,
)

const redirect = (location: string) => new Response(null, { status: 302, headers: { location } });

const decodeBasic = (
  header: string | null,
): { readonly username: string; readonly password: string } | null => {
  if (!header?.startsWith("Basic ")) return null;
  const decoded = atob(header.slice("Basic ".length));
  const separator = decoded.indexOf(":");
  if (separator < 0) return null;
  return { username: decoded.slice(0, separator), password: decoded.slice(separator + 1) };
};

const base64url = (buffer: ArrayBuffer): string => {
  const bytes = new Uint8Array(buffer);