Problem

• Rejected sdk-js proms are not handled correctly
• Due to this, Possibly unhandled rejection error: is shown in the developer console
• Fixing this problem at all places where sdk-js requests are made would introduce a high risk of regressions

Solution #1
Fix at one central place in sdk-js (e. g. prototype inheritance)

Solution #2
Disable error message in angularjs

Conclusion
Since Solution #1 might break the API behavior some users rely on, Solution #2 should be preferred over Solution #1.