Error: Assertion Failed: calling set on destroyed object

[jamiechong]

I get this error when the button component was destroyed within the async promise. Pseudocode example:

{{#if someCondition}}
{{em-button default="Submit" on-click="makeAsync"}}
{{/if}}

If, while the async code is running someCondition becomes false the button is destroyed and then I get this error. I suggest doing something in the willDestroyElement event of the Ember Component to avoid this.