Webstrates presents an alternative take on the future of web use and development. In Webstrates, changes to the Document Object Model (DOM) of webpages (called webstrates) are persisted across reloads and synchronized to other clients of the same webstrate. This includes changes to embedded JavaScript and CSS. With Webstrates we demonstrate one possible direction for the future web that we hope can inspire and foster discussion at the ProWeb 2017 workshop. We will gladly demonstrate Webstrates at the workshop and illustrate best programming practices for it. Further, we would like to discuss open issues (e.g. programming language support, collaborative programming, fine-grained permis- sions, handling large datasets, and other advances in the future of web programming) from which we believe future versions of Webstrates and its community will greatly benefit.