Ajax net::ERR_SPDY_PROTOCOL_ERROR

gydrus

gydrus

Hello!
I've moved my site to new server (ubuntu 16.04 + nginx + php7.2) and got errors "POST https://food-tracker.ru/foods net::ERR_SPDY_PROTOCOL_ERROR" when it make ajax requests.
There are no errors at FireFox and Internet Explorer browsers! And at previous server with debian7+nginx+php5 all worked fine with latest Opera too. But now latest Opera is not working with the site. Can You help me? How to solve this problem?
Thank You!

leocg

leocg Moderator Volunteer @gydrus

@gydrus The page seems to load fine here, does this cause any problem to access the site?

A search for 'Ajax net::ERR_SPDY_PROTOCOL_ERROR' returned several results, did you try to check some of them?

gydrus

gydrus @leocg

@leocg Yes, page loads fine! but after authorization on site some ajax requests are not works. (
Yes, i've tryed all recommendations given by google (clear cache, reset connections and so on), but they was not successfull (

gydrus

gydrus

Yeah! I've found the solution!
There is a request code example:

$.ajax({
	url: 'https://food-tracker.ru/foods',
	type: 'POST',
	dataType: 'JSON',
	data: {term: 'rjk'},
	success: function (data) {console.log(data);}
});

And there was server code:

protected function returnJSON($data) {
    header('text/html; charset=utf-8');
    echo json_encode($data);
    die(0);
}

The solution is to change line header('text/html; charset=utf-8'); to header('Content-type: application/json; charset=utf-8');

So, right working code is:

protected function returnJSON($data) {
    header('Content-type: application/json; charset=utf-8');
    echo json_encode($data);
    die(0);
}

Thanks for your attention!

P.S. But one question i still have: why was it working fine before, and brokes when just hosting changed?