[musingfox]

Summary

• Crawler og pages for Instagram and Facebook now carry the whole post in an <article> body (full caption, every image as a carousel, videos). The <head> is unchanged.
• GET /?url=<url>&iv=<rhash> wraps Instagram and Facebook share links in https://t.me/iv?url=...&rhash=..., which opens with the user's own Instant View template without Telegram's approval. Other links come back as the plain share link, since their previews come from fix services the template cannot cover. iv is ignored with raw=1; a non-hex iv is a 400.
• tg_rhash, which Telegram appends when its Instant View bot fetches the share link, is now cleaned like a tracking parameter (spec updated).
• docs/telegram-instant-view.iv holds the template; both READMEs describe the setup.

No bindings, variables or config changes: the rhash is supplied by the caller.

Test plan

• bun run check (unit tests for the article body, &iv=, and tg_rhash)
• Deployed to a throwaway Worker: the Instant View bot's UA is TelegramBot (like TwitterBot) (matched by isCrawler), and 302'd /media/ images and videos render in Instant View
• On a phone, t.me/iv links for an Instagram carousel, reel and single image, and a Facebook post and reel, all show text, slideshow and playable video

🤖 Generated with Claude Code

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