Function shouldTryRemoteBrowserFallback

packages/server/browser.ts:95–105

(isRemote: boolean)

 * Fails silently if browser can't be opened
 */
export function shouldTryRemoteBrowserFallback(isRemote: boolean): boolean {
  if (!isRemote) return false;
  const plannotatorBrowser = process.env.PLANNOTATOR_BROWSER;
  const browser = process.env.BROWSER;
  // Treat headless sentinels (e.g. BROWSER=true from Claude Code's agent view)
  // as if no real browser handler were configured, so the IPC fallback still runs.
  const hasRealHandler =
    (plannotatorBrowser && !isNoOpBrowserSentinel(plannotatorBrowser)) ||
    (browser && !isNoOpBrowserSentinel(browser));
  return !hasRealHandler;
}

function buildGlimpseHtml(url: string): string {
  const encodedUrl = JSON.stringify(url);