I have created a simple app and wanted to test it with different OS and browsers. The game works fine on all PC browsers but on the iOS browsers not so much. On one of the browser I saw this error dns probe finished nxdomain. I have talked to support of my webhost and it wasn't anything on their side. I have figured out that I can get the game to work if I use chrome and open incognito tab on iOS. After that everything is cached and then the game is fine with regular chrome. There seems to be something I'm missing to fix this problem for iOS.