Embedding pens from CodePen

Feature
54

Thanks for jumping in so quickly @chriscoyier!

This happens when I try to onebox the link using the gem, the request is being done from Ruby’s Net::HTTP.

The flow is:

  1. Fetch Codepen’s HTML (e.g. GET to https://codepen.io/web-tiki/full/dNpgrR).
  2. Discover the oEmbed URL from the application/json+oembed header tag.
  3. Fetch oEmbed data and build the box.

We never reach step number 2.

Onebox can also work outside of Discourse since it’s a standalone gem, so I don’t think we can rely on a referrer. On the other hand, we could possibly set a specific user-agent that can be allowed on your side? (Is this acceptable, @sam?)

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