I've been storing some document data in my app in a protobuf in part because I thought protobuf's support for an evolving schema would help with this data aging

I've been storing some document data in my app in a protobuf in part because I thought protobuf's support for an evolving schema would help with this data aging gracefully over time. But protobufs in js are worse than I thought they would be so I'm considering trying the same strategy out with JSON Schema instead. Any reason why that wouldn't work? JSON is so much easier to work with in js than protos.