Why is the document not loading in a new tab in mobile browsers?

Question

JavaScript

var html = 'тут html-документ'
var вкладка = window.open("about:blank")
вкладка.onload = function()
{    
      вкладка.document.write(html)
}

Works on desktop browsers, but blank on mobile.
The action is triggered when the user clicks the button.

Answer 1

$a = json_decode('{"result":{"message_id":18846400}}');
echo $a->result->message_id;

Answer 2

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