Framework · 2012–2018 · Cloud Scale
Meteor
Full-stack JS with live data sync before anyone agreed on modules. Magic demo, fragile production.
Why Meteor faded
Meteor faded because isomorphic hype collapsed into specialized front and back stacks with clearer boundaries. Mongo-by-default and magic bundling scared enterprise buyers. Real-time stuck; the monolith framework did not.

Compare with
Related
Platform · 2009–now
Node.js
JS on the server. Unified the stack and created a package ecosystem that is both miracle and hazard.
Platform · 2009–now
MongoDB
Document DB that became a punchline, then a grown-up product. Survived by getting serious about transactions and ops.
Framework · 2013–now
React
Components and unidirectional data. Won the front-end by being good enough and having a gravitational ecosystem.