Quick layman explanation on Frame:
- You create site, site has link
- Site has meta frame tags
- You post site link to FC client
- Client parses the meta tags
- If supported, will embed the Frame, if not fallback to simple embed
- Click Button will send POST to site link
- Response from site is HTML with new frame

POST URL can be customized by adding an fc:frame:post_url entry to your meta tags.

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