Easy fix is the double sided mirror tape (3M). Get it from Home Depot or ACE. Comes in both little strips and a roll. Put several 2 inch long pieces around the perimeter.
Remember - you get one shot at putting it one, so be correct. Would be hard to take off without bending.
Works good. The stuff originally on there is thin so requires a perfect flat surfact. The mirror tape has a little thickness to it, so more forgiving.
Fixed mine 18 months ago - no issue even with AZ heat.