Inconsistent Content-Type -header with lowercase t

[tonila]

Hi,

Is there a reason why Content-Type header here is sent with lower case t?
I just debugged my mobile app few hours, until realizing, I need to implement case insensetive headers, when using passport. :)

oauth2-server/src/Exception/OAuthServerException.php

Line 308 in 7cb615b

'Content-type' => 'application/json',

    public function getHttpHeaders(): array
    {
        $headers = [
            'Content-type' => 'application/json',
        ];
    ...

[Sephster]

Ideally it should be with an uppercase T but headers are also supposed to be case insensitive so any clients implemented according to spec shouldn't be affected by this. On the off chance there are clients out there that have implemented this in a case sensitive manner, we'll fix this for the next major. Thank you for spotting this!