ScriptLab takes a very long time to load in Outlook Desktop, loads quickly in Outlook Web about office-js

[SethDG]

I don't know how to help debug this due to #4342

[Oleg-O]

Curious, do you have any launchevents add-ins sideloaded or deployed by admin for this user? If you do and it's failing, that could be one reason - you can confirm by uninstalling that and retrying. Let me know if that was the issue or not.

[SethDG]

@Oleg-O i removed a different addin and it did resolve the issue with ScriptLab. Would you be able to provide assistance on debugging the problems with the other addin? What would be running at that point in time? What should I look for in launchevents? Is there an order of operations when launchevents runs?

[SethDG]

@Oleg-O the addin i uninstalled isn't failing as far as i can tell, just potentially running slow due to #4343 . how would you be able to tell if it were failing?

[Oleg-O]

For launchevents, we do have some documentation I referred to in the linked post (#4342). Here it is again: https://learn.microsoft.com/en-us/office/dev/add-ins/outlook/debug-autolaunch?tabs=windows. Also, this could be useful: https://learn.microsoft.com/en-us/office/dev/add-ins/outlook/troubleshoot-event-based-and-spam-reporting-add-ins. In particular, one common case where launchevents add-ins fail is when the JS code is using some features that are not part of ECMAScript 2016, but there could be other reasons too. Hope this helps.