well,,, my glass did not crack.
I cleaned it immediately after I opened it on a 550 degree stovetop. It was all hot coals, so i swung the door all the way open to keep from burning my face off,,,sprayed glass cleaner directly on the glass. It evaporated on contact.
I let it set for a few seconds,,,,sprayed the glass cleaner directly on the towel,,,,rubbed the glass. It was cleaning but evaporated again so fast, and the heat came thru the towel and got hot on my fingers,,,making me stop. I let it set more,,,sprayed again directly on the glass,,,rubbed fast. Did that until the glass was clean. Glass was still hot,hot,hot.
When i closed the door, you could see smearing. It was drying too fast to get perfectly clean.
It was fun,,,the glass survived. Thermal shock did nothing this time. Only burnt myself twice.