Catch error on watchQuery poll

I posted this issue on SO, but no response, so I post it here as a potential bug report. https://stackoverflow.com/questions/44898988/apollo-client-how-to-catch-error-with-pollinterval

I have a watchQuery with a pollInterval, like so:

apollo.watchQuery<any>({
  query: ...,
  pollInterval: 10000
}))/** retry logic omitted **/.subscribe(..., (err) =>  {console.error(err)})

I want to ignore any network errors for this particular query.

Intended outcome:

Catch all errors during a poll using the Observable error handler. Network related errors should only bubble up where the query is initiated (including later polls).

Actual outcome:

The error handler is called but I get an additional uncaught promise rejection:

How to reproduce the issue:

• Create a watchQuery with a poll interval, set an error handler on the subscribe call
• Simulate network error (e.g. chrome dev bar)

Additional Info

QueryManager.js:235 maps to QueryManager.ts:476

apollo-client@1.7.0

[danilobuerger]

I haven’t checked wether this is still an issue or not. But I am reopening this since stale bot closed it and several people are still having an issue with it.

[quangman96]