Function getOrCreateCdpSession

browse/src/cdp-bridge.ts:79–94

(
  page: Page,
  cache: WeakMap<Page, any>,
)

 * `framenavigated` because DOM/CSS domain state is tied to the document).
 */
export async function getOrCreateCdpSession(
  page: Page,
  cache: WeakMap<Page, any>,
): Promise<any> {
  let session = cache.get(page);
  if (session) return session;
  session = await page.context().newCDPSession(page);
  cache.set(page, session);
  page.once('close', () => {
    cache.delete(page);
    session.detach().catch(() => {
      // Best-effort cleanup — see withCdpSession finally block.
    });
  });
  return session;
}

// ─── $B cdp bridge ─────────────────────────────────────────────