One Dev Question with Aaron Gustafson – What is a service worker?

The ‘One Dev Question with Aaron Gustafson’ video series is part of the One Dev Minute channel.  In this series, Aaron answers various questions about Progressive Web Apps (PWAs) – what they are, how to create them, what you can use them for.  You can read more about PWAs at https://docs.microsoft.com/microsoft-edge/progressive-web-apps?WT.mc_id=windowsdocs-twitter and follow Aaron on Twitter at @AaronGustafson. Find more Windows developer videos on Twitter at @WindowsDocs.  Feel free to leave questions for Aaron in the comments below.