On iOS, background audio autoplay is disallowed, users are not even allowed to add exceptions. Thus, many existing Web apps and games - WebAssembly apps in particular, are incompatible with iOS without modifications. Fortunately, iOS 15 (late 2021) started to allow browser extensions, including Userscripts. To overcome this problem, a Userscript has been developed to intercept Web Audio contexts and inject a "Start Autoplay?" pop-up window into the page, enabling otherwise incompatible games ...
