	public RoundedContainer(Dimension2D dim, double titleHeight, double attributeHeight, HColor borderColor,
			HColor backColor, HColor imgBackcolor, UStroke stroke, double rounded, double shadowing) {
		if (dim.getWidth() == 0) {
			throw new IllegalArgumentException();
		}
		this.rounded = rounded;
		this.dim = dim;
		this.imgBackcolor = imgBackcolor;
		this.titleHeight = titleHeight;
		this.borderColor = borderColor;
		this.backColor = backColor;
		this.attributeHeight = attributeHeight;
		this.stroke = stroke;
		this.shadowing = shadowing;
	}
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.