Unable to validate "1 " as chunk length header

[DangerLifter]

I got stable exception "Unable to validate "1 " as chunk length header".
Test url "http://www.samaraphone.ru/530300.shtml".
Probably trim() could be solution;

[WyriHaximus]

Just tested it locally and could fetch that URL without issues. Which version are react/http-client are you using?

[clue]

Can you show a gist to reproduce the problem you're seeing? This should help us investigate further and maybe provide a solution for this.

Note that "1 " (with trailing whitespace) is invalid as per RFC 7230. Do you happen to have an idea what kind of software would produce this and how other HTTP clients (curl, browsers etc.) would handle this?

[DangerLifter]

At this moment I can reproduce issue with below code. It uses additional libraries Guzzle and WyriHaximus Ring php handler. In my browser "Firefox" urls return content fine (i see chunked header in response). Calling "wget" and "curl" from command line also work fine.
I have no idea what software produces this issue, But as you can see I found already 2 sites in 1 day usage that produce invalid responses .

Also I should mention that I used old version of library and there was no such problem.

require __DIR__ . '/bootstrap/autoload.php';

$url = $argv[1];
$loop = \React\EventLoop\Factory::create();
$handler = new \WyriHaximus\React\RingPHP\HttpClientAdapter($loop);
$options = [
	'defaults' => [
		'headers' => array(
			'User-Agent' => 'firefox'
		),
	],
	'handler' => $handler
];

$client = new \GuzzleHttp\Client($options);

$client->get($url, ['future' => true])->
then(
	function ($response) {
		var_dump('ok');
	},
	function (\Throwable $error) {
		while ($error->getPrevious()) $error = $error->getPrevious();
		var_dump($error->getMessage());
	}
)->done();

$loop->run();

$ php ./test.php http://www.otpuskplus.com.ua/skadovsk/review.php?id=599
string(47) "Unable to validate "24 " as chunk length header"
$ php ./test2.php http://www.samaraphone.ru/530300.shtml
string(47) "Unable to validate "1 " as chunk length header"