According to the specification, EventSource should not try to reconnect if it fails to establish the connection in the first place. "any network error that prevents the HTTP connection from being established in the first place (e.g. DNS errors), must cause the user agent to fail the connection"
(The idea being to avoid hammering an already suffering network.)
More easily tested with CORS support.
Since the spec changed, this regression is now compliant!
I'm confused. Is it now OK to keep hitting the server indefinitely, wasting bandwidth? This seems like horrible behavior if so.