oEmbed URL with international characters leads to 400 #477

Problem: Meta oEmbed url is generated with wrong data in an international page. E.g.: https://www.documentcloud.org/documents/7203159-Joaquín-El-Chapo-Guzmán-Appeal.html

So example oEmbed url leading to 400 is generated like so:
https://www.documentcloud.org/api/oembed.json?url=https%3A%2F%2Fwww.documentcloud.org%2Fdocuments%2F7203159-Joaqu%C3%ADn-El-Chapo-Guzm%C3%A1n-Appeal.html

I believe the solution should be similar to URL encoding this variable or there is something in underlying data logic maybe.
<%= @oembeddable_resource.oembed_url %>