no issue
- embed cards now store metadata including thumbnail urls in their payload
- we want to use this metadata to render video cards in emails
- by default oembed endpoints return fairly small thumbnail images that don't look great when blown up
- oembed supports a `maxwidth` query param that will instruct oembed providers to return larger sizes of the content if available
no issue
- added the same 2sec timeout and `Ghost` user-agent header to the `rel="alternate"` oembed request that we use for the initial html page request
