Error on UTF8 encode

[Kremilly]

The WP-JSON don't recognize and too convert to UTF-8

This problem is exists on latin languages... Eg: Portuguese, Espanish and etc...

[nylen]

The REST API has been merged into WordPress core! Development and support are no longer taking place in this repository.

Please post support requests to the WordPress forums at https://wordpress.org/support/forum/how-to-and-troubleshooting/ with the topic tag "rest-api".

For bugs and patches, please post the issue or patch to WordPress core Trac at https://core.trac.wordpress.org -- Be sure to include full details and reproduction steps about the issue you are experiencing.

If you are unfamiliar with Trac, you can refer to the "Opening a Ticket" user guide at https://make.wordpress.org/core/handbook/tutorials/trac/opening-a-ticket/ for an introduction!

Thank you,
The REST API team