A Javascript from w3schools stopped working after a few months. Lucky for me I have not used it in the production yet. I see this code changed on w3schools. The code contributor has gone from MIT licence to commercial. The script on w3schools is outdated and now cached on Cloudflare. There is a link in the script to the contributor. So if someone want to update script, he needs to pay.
I do not post specifics about what script it is because I suspect it is a typical situation on w3schools.
My question is, can I do anything about it or do not trust w3schools anymore?