You can attempt a DIY repair if:
Material defects, such as inclusions, impurities, or manufacturing flaws, can also provide a nucleation site for crack growth. In addition, the age and condition of the glass can play a significant role in its susceptibility to cracking. Over time, glass can undergo a process called "devitrification," where the glass structure becomes more prone to cracking due to the formation of crystalline structures. crack in window glass