The onOpen() callback function may not be called after online event

[SuperPat45]

Trying to make an offline mode for my application, I noticed:

The request.onOpen() callback function may not be called after the online event if the response.error is true.

1. To reproduce on android, disconnect wifi and mobile data
2. Wait for a connection error
3. Re-enable wifi/mobile data
4. The connection reopen fined, but my application is not noticed by the onopen() callback
5. Due to the _invokeCallback(); instruction (line 1067) not called in the _open() function when response.error is true

[jfarcand]

Testing today.