Onebox embeds too much content when target page has malformed HTML

Funzionalità
1

Hi,

I had an issue with the following link: http://cupfoundation.wordpress.com/2014/10/13/le-charlatanisme-de-galuel/

Put on a one-line, it almost imports the whole page. I think this is not a normal behaviour, isn’t it?

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2

This is indeed really weird, the preview of the onebox is completely different than the cooked version…

3

We have seen this before, it implies badly invalid markup on the target site which somehow confuses the oneboxer, that is what I recall.

4

So what should we do about it?

5

See if the target site passes html validation via the w3c validator, and if not, how many errors does it report?

6

Error Line 1250, Column 113: Stray end tag a.

…s://fr.wordpress.com/?ref=lof">Build a website with WordPress.com</a></a></div>

Yep, that’ll mess up the document structure.

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7

Not sure how to fix this. Can we make onebox more tolerant of screwed up HTML?

8

We can, nokogiri can iron out bad html and we can trucate it at some sort of sane size.

9

@techapj can you add this to your list?

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10

This is now fixed via:

https://github.com/discourse/onebox/commit/1b8bef8f96a4353cdfa6bc67da87d6750d5d31bf

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12

Here’s how it looks now :+1:

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