> For example, Chrome Desktop, Firefox, and IE did not enforce HPKP if they encountered a cert from a user-added CA. Why does Android do the opposite?
Your examples are all browsers. I understood that Chrome on Android will continue to support using a user-added CA added to the user store. Android and desktops behave exactly the same for web browsers.
Non-browser apps are where the differences exist. On Android you must opt-in each app to trust the user store. I'd imagine that the next step is automating https://github.com/shroudedcode/apk-mitm to bulk replace all installed apps with modified apks.
Your examples are all browsers. I understood that Chrome on Android will continue to support using a user-added CA added to the user store. Android and desktops behave exactly the same for web browsers.
Non-browser apps are where the differences exist. On Android you must opt-in each app to trust the user store. I'd imagine that the next step is automating https://github.com/shroudedcode/apk-mitm to bulk replace all installed apps with modified apks.