Archive.is has trouble oneboxing

Support
1

Hello! I am curious if there’s a way to extend the Onebox parsing feature to customize how it generates the Twitter-like cards for certain URL pre-fetches.

For instance, I would like it to generate a preview for URLs such as the following

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image1683×633 35.6 KB

which on twitter displays something like this

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image1199×641 76.3 KB

2

So you want special support for archive.is? It looks like it’s missing the tags per the error message.

http://archive.is/mgHP8

I get error code 429, so that service appears a bit wonky:

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image1360×239 23.1 KB

1 Like
3

well I suppose I’m wondering how to develop extensions to Onebox on my own, since I’ve found a few sites that Twitter apparently has special-cased and Discourse hasn’t…

Is there an extension or pluggable point for plugin authors to add custom parsing passes to Onebox?

Thanks for the reply!

4

oh! I see it has twitter-specific Opengraph tags. I wonder if those could be used…

Note that it does have an og:image property, but only a twitter:description :upside_down_face:

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image3414×1111 626 KB

5

In case it helps diagnose the 429 http response, here’s another example of a Onebox fetch that fails, but with a different (403) response: Iran's hard-line judiciary chief Ebrahim Raisi registers to run for presidency

6

to clarify this bug report slightly:

  1. the error message says that there isn’t an og:image tag, even though there is one (see toward the bottom of screenshot).
  2. Also, the og:description tag is explicitly marked as optional by the OpenGraph spec, so why does Onebox require it?

Thank you