Modal stays when integration no longer exists

(Migrated from https://github.com/syndesisio/syndesis/issues/5155)

Author: Martin Muzikar
Assignees: Riccardo Forina,

This is a...

[pre][code]
[ ] Feature request
[ ] Regression (a behavior that used to work and stopped working in a new release)
[x] Bug report [!-- Please search GitHub for a similar issue or PR before submitting --]
[ ] Documentation issue or request
[/code][/pre]

Description

This happens due to the delay between user calling delete on integration and the integration no longer existing in the UI. The delay is sometimes too long and it seems that nothing is happening so the user decides to press delete again; the modal shows up and in that time the integration can be already deleted.

The part of this behavior I'd call bug is that the modal stays up and the cancel and the X button don't close the window, so you have to refresh the page.
When you click on any of those button you get these errors in the console
!image