core-ajax does not handle ERR_CONNECTION_REFUSED

[har79]

In core-ajax, if my backend server is dead when .go() is called, on-core-response is called with invalid data. The expected behaviour is that on-core-error is called. The console contains the following logs:

GET http://localhost:8080/data net::ERR_CONNECTION_REFUSED core-xhr.html:68
core-ajax caught an exception trying to parse response as JSON: core-ajax.html:241
url: /data core-ajax.html:242
SyntaxError {stack: (...), message: "Unexpected end of input"} core-ajax.html:243

[har79]

Thinking about it, I would expect on-core-error to be fired for all problems parsing the JSON as well as for all XHR errors; both of which would cover this specific problem.

[mnowakowski]

It look like core-ajax error. In my code I have POST method and after change core-ajax definition from:

body='{"name":"{{name}}"}'

to:

body="{'name':'{{name}}'}"

the problem disappeared!! :) Try it!

[darktears]

I can confirm I have the same problem. on-core-error is not called.

[majidfn]

It does not handle the ERR_CONNECTION_RESET as well. It fires the on-core-response handler with status = 0 which is not correct.
The following could be potentially a fix for this: googlearchive/core-ajax#52

[tjsavage]

Closing this issue due to age and the release of version 1 of Polymer - please feel free to re-open if this is incorrect.