sockjs/sockjs-protocol — Issue #31: ETag doesn't hurt when no-cache is set
Author: majek
Created: 2011-12-19 12:21:38+00:00
State: open

@mrjoes in https://groups.google.com/group/sockjs/msg/b57a83de3b32db87 suggested:

```
4. ETag in JSONP transport. Again, Tornado makes assumption that ETag is
always required and will generate one if there's none set by the
application. Is there reason to check for ETag even if Cache-Control is set
to 'no-store, no-cache, must-revalidate, max-age=0'?
```