fetch returns nothing?

Question

JavaScript

fetch returns nothing. Banal request to Api vk.com.

fetch("https://api.vk.com/method/messages.send").then(data => {
 document.write(data);
});

Or even like this:

var response = fetch("https://api.vk.com/method/messages.send");
document.write(response.text());

Just emptiness. Even in response or data.
When I make a request with parameters (token, message, recipient, then the request is sent, but there is no response from it)

Answer 1

the browser is blocking your requests because this is a cross domain request. To be able to send a request, use the Javascript SDK or JSONP (everything is in the documentation for vk api)