case 'treeIsDirty' :
return !!X_Node_updateTimerID;
case 'fontSize' :
- return X_Node_CSS_getCharSize( this );
+ return this.parent ? X_Node_CSS_getCharSize( this ) : 0;
case 'inGPU' :
return !!( this[ '_flags' ] & ( X_NodeFlags_GPU_NOW | X_NodeFlags_GPU_RELEASE_RESERVED ) );
};