v0.51.8

Fixed

• Send → Webpage no longer renders external URLs as a blank page (most visibly with JS-driven SPAs; the underlying defect also cost every external URL render a ~15 s stall). Two compounding bugs in app/renderer.py:

  1. wait_for_function("window.__tesseraeComposed === true") was firing on every render. That signal is set by composer.js after dashboard cells mount; on external URLs it never fires, so the wait always burned the full 15 s timeout before falling through.
  2. wait_until="load" was used for all renders, which fires before SPAs hydrate. Reddit-style React-shell sites screenshotted an empty document.

  RenderRequest gains an is_composer flag (default True, set False by Push.push_webpage). External URLs now skip the composer-mount wait and use a hybrid wait: goto on load (ad-heavy news sites don't hard-fail at navigation) followed by a best-effort 8 s wait_for_load_state("networkidle") so SPAs get time to hydrate.

  Measured (cold render, 1600×1200):

  URL	Before	After
  example.com	15.6 s	1.0 s
  wikipedia	17.0 s	7.6 s
  bbc.com/news	23.8 s	15.9 s
  arstechnica	3-retry hard fail	17.1 s, renders
  theguardian	3-retry hard fail	34.2 s, renders

• Caveat (not fixed): reddit.com still renders as a near-blank page because Cloudflare's bot gate serves Playwright a "You've been blocked by network security" page regardless of wait strategy. Server-side block; routing around it would need either stealth-flavoured Chromium or an RSS fetch fallback, both larger changes.