There still many portions of code using file_get_contents(), running tests using Proxy behind my company's firewall gives me back warnings. ⚠️

This function ignores proxy configuration, I think shouldn't be used no more because storically there are plenty of issues against it 😨

This is a minor Issue because outputs only warnings in console (tests skipped, I suppose). It happens also if you try to write your own IntegrationTests while developing plugins.