Patent attributes
Described are techniques for validating a resource. A hierarchy of objects is received. The hierarchy includes first and second objects at, respectively, first and second levels of the hierarchy. The second object is a child of the first object. The first object is a parent of the second object and represents a first resource embedding a second resource represented by the second object. Each of the objects in the hierarchy identifies a resource that is automatically retrieved in connection with rendering a webpage. A first server location providing the first resource is determined using the first object. A second server location providing the second resource is determined using the second object. In accordance with trusted location criteria, it is determined whether the first resource is allowed to embed the second resource.
