When resolving an onBefore promise, the previous state is removed while async resolves are still pending.

[robertvanhoesel]

This is a (check one box):

• Bug Report

My version of UI-Router is: 1.0.28

Bug Report

Current Behavior:

We can return a promise to transitions.onBefore(), if the promises resolves, I observe that the router starts the exit/retain/enter flow, and in turn removes the original state from the DOM.

The new state is only added after all async resolves are completed. In the mean time this leaves an empty dom or 'flickering' page.

Expected Behavior:

I expect the behavior to be the same to when I am not using an async onBefore, which is: Don't exit the original state until all async resolves are completed.

When returning a promise transitions.onEnter() the behavior is as expected. I can work with that.

If you think I am on to something here I am happy to provide a repro – otherwise feel free to ignore. Thanks for maintaining this useful project!

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