Edit in JSFiddle

// if the label string passed as an argument 
// is set properly on Spil Games' backend
{
    linkName: 'String',
    image: 'String',
    action: 'function'
}

// if the label string passed as an argument 
// is not available in the game configuration
// set at Spil Games' backend
{
    error: 'String',
    action: 'function'
}