Tests that getTargetInfo works on a worker target.
{
    attached : true
    browserContextId : <string>
    canAccessOpener : false
    parentFrameId : <string>
    parentId : <string>
    targetId : <string>
    title : http://127.0.0.1:8000/inspector-protocol/fetch/resources/worker.js
    type : worker
    url : http://127.0.0.1:8000/inspector-protocol/fetch/resources/worker.js
}
{
    code : -32000
    message : Not allowed
}