Dish treating appliance with window insert

A dish treating appliance for treating dishes according to an automatic cycle of operation, the dish treating appliance comprising:

• a tub at least partially defining a treating chamber receiving dishes for treatment according to the automatic cycle of operation;
• an access opening provided in the tub and through which is had access to the treating chamber;
• a door movable relative to the tub to selectively open and close the access opening, and the door having an inner surface confronting the access opening when the door closes the access opening and an outer surface, opposite the inner surface;
• and
• a window assembly provided in the door and having spaced and sealed inner and outer panes sandwiched between inner and outer frame elements connected by a waterproof weld joint, wherein the inner frame element comprises a second flange overlying the inner surface of the door.