Access https page via Http Client - Cakephp 3.6

Hi all,

I want to read data from the following page

Unfortunately I am not able to get a response using the approach shown in the documentation:

use Cake\Http\Client;
$http = new Client();

If I save the page manually in my webroot and access the page then it works just fine.

Are there any settings required for SSL (https)?

Thanks and best regards