Client error: `GET https://www.mailjet.com/fr/wp-json/oembed/1.0/embed?format=xml&url=https%3A%2F%2Fwww.mailjet.com%2Ffr%2Fglossaire%2Fkpi%2F` resulted in a `400 Bad Request` response:
{"code":"rest_missing_callback_param","message":"Param\u00e8tre(s) manquant(s)\u00a0: url","data":{"status":400,"params" (truncated...)