The name property of a JavaScript class constructor is read-only once the class is defined, but it can be modified by a static field definition in the class body itself. However, I was surprised to find that it can’t be modified in a static initialization block.

This works great:

class Foo {
  static name = 'Bar';
}

But this throws a TypeError saying that name is read-only:

class Foo {
  static {
    this.name = 'Bar';
  }
}

Is this the intended behavior or an accidental quirk in the spec?