KClass.qualifiedName not supported in JavaScript?

The document of kotlin.reflect.KClass says qualifiedName is supported by JS and Native:

However, when I use KClass.qualifiedName in the JavaScript module of a multi-platform project, both IDEA and the Kotlin compiler complain that it is not supported by JavaScript yet:

So is the document wrong?

Which version of Kotlin are you using? Is it the latest?

kotlin version 1.3.31

This is strange for me too. The documentation says that near the full reflection api is supported on jvm and js, but the ide and the compiler thinks it differently. Is there something missing?