From the linked Google doc: ------------------------------------------------------ Suspend all background tabs (~2018) Fully pause a tab in the background aft

From the linked Google doc: ------------------------------------------------------ Suspend all background tabs (~2018) Fully pause a tab in the background after N minutes unless a web developer states that the tab should continue to run via an explicit opt-out. Remove opt-outs (~2020+) Remove the opt-out and pause all pages. We’ll be able to do this once we’ve (1) ensured that the web platform provides the APIs needed for major use cases and (2) given developers a sufficient deprecation period. ------------------------------------------------------ That sounds a bit scary, and would require a lot of rewriting or refactor existing code. I'm assuming not all the APIs are even ready yet to proactively start doing this already. But sounds like the iOS model, which has it's pros and cons. Probably has a lot of benefits though in the long run. I hope by pause, means if they switch back it resumes instead of reloading/refreshing. Maybe even emit an event to know it resumed, if the app wants to check if new notifications, etc for it's view... Maybe you were filling out a complex game form - losing state would really be sucky if it reloads, instead of resuming.