See https://en.wikipedia.org/w/index.php?title=Service_workers&diff=781302599&oldid=781302542
Reported by User:Sasuke_Sarutobi at enwiki's VEF.
See https://en.wikipedia.org/w/index.php?title=Service_workers&diff=781302599&oldid=781302542
Reported by User:Sasuke_Sarutobi at enwiki's VEF.