This doesn't show up in CI, but I have this error locally:
1) tests\HttpTest::testRequestBasic
Expected headers to be an array containing key `Content-Type`
Failed asserting that an array has the key 'Content-Type'.
/home/jdavid/sandboxes/Ably/ably-php/tests/HttpTest.php:143
This doesn't show up in CI, but I have this error locally:
This PR fixes that unit test.