If your code is installed on a general purpose computing device that is provided to a child, you can be fined.

If you provide code to the general public without requesting an age signal from the receiver’s OS, you can be fined.

The attorney general of California might consider the JavaScript in your web page to be “content”. They might consider it to be an “application”. There is no clear distinction. If you request an age signal before providing content, you can be fined. If you fail to request an age signal before providing an application, you can be fined.

The more I read about this law, the less I think it will actually go into effect. It’s going to face a whole series of injunctions. The lawyers are going to bill thousands of hours, but the whole thing is going to be scrapped.