JSon response not detected with header containing utf8

[JLTRY]

case of header =
Array
(
[0] => application/json; charset=utf-8
)
correct phpstan

Pull Request for Issue #19

Summary of Changes

accept application/json; charset=utf-8 in header

Testing Instructions

checked with extension for Google authentification
https://extensions.joomla.org/extension/access-a-security/jo-s-google-auth/

Documentation Changes Required

no

[JLTRY]

@rdeutz @richard67 @LadySolveig I need this pull request to be able to run correctly my google auth extension
https://extensions.joomla.org/extension/access-a-security/jo-s-google-auth/
PErhaps is it due to french site and google providing an "application/json; charset=utf-8" in response header

[HLeithner]

Somethings are wrong here.

getHeader() is case insensitive, so the loop is not needed, also strpos is pre php 8.0, use str_starts_with instead.

my suggestion:
change

if (in_array('application/json', $response->getHeader('Content-Type'))) {

to

if (str_starts_with('application/json', strtolower($response->getHeader('Content-Type')[0]))) {

but that's not really correct, you should iterate over the getHeader() result array an check each row, as done in the original if statement.

[JLTRY]

@HLeithner I modified the code following your directives
I tested it OK with my component