Onebox doesn't work for WordPress

I am not a WordPress expert.

Because either oEmbed or Discourse won’t read past the ?.

I’m pretty sure that if you turn on any permalinks other than “plain” your problem will be solved. It won’t hurt anything because the old ?p=xxx links will continue to work (but remember I’m not an expert, so you should check this after you turn on permalinks).

See http://schizophrenia.com/wp-admin/options-permalink.php

Here’s one from my site:

https://www.literatecomputing.com/product/wordpress-discourse-together/