Outlook 365 add-in not loading on MAC/OS new Outlook app. about office-js

[mobisw-msft]

Hey @SE-Hubert ,

Can you please share the manifest with us, as well as the tenant information? (edit: addition) Does this add-in not show up only in Mac (as an admin managed add-in), or is this a behaviour you see across platforms?

[SE-Hubert]

Hi, Of course here is the hosted link: https://office365.secure-exchanges.com/SecureExchanges.xml From: mobisw-msft ***@***.***> Sent: Thursday, June 13, 2024 8:24 AM To: OfficeDev/office-js ***@***.***> Cc: Hubert Laliberté ***@***.***>; Mention ***@***.***> Subject: [PUBLIPOSTAGE] Re: [OfficeDev/office-js] Outlook 365 add-in not loading on MAC/OS new Outlook app. (Issue #4574) Importance: Low Hey @SE-Hubert<https://github.com/SE-Hubert> , Can you please share the manifest with us? — Reply to this email directly, view it on GitHub<#4574 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/BJEDXHO2E23LAT6XKPLOYQ3ZHGFOXAVCNFSM6AAAAABJGNQYO2VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDCNRVGUYDKNJUGA>. You are receiving this because you were mentioned.Message ID: ***@***.******@***.***>>

[SE-Hubert]

The add-in doesn't show up only on the Mac application as admin managed or as a side load.
If I access it on a web browser on a Mac, everything works accordingly. Its really only on the Mac application

[SE-Hubert]

From what I was able to debug, it may be link to the LauchEvents preventing my add-in to be shown correctly.

[1TheMuffinMan]

From reading in another issue + my own experience the javascript engine used in the smart events (your UI-less function file) for Outlook on Windows or Mac is not a modern javascript engine. It's not clear exactly what its capabilities are, but it's pretty basic. I took a look at your function file and I see you're using let keyword. That is a feature of ES6? Doubt it's supported.

In Outlook on the web your UI-less function file gets run in the browser so you can use all the juicy features no problem.

It would be great to get a hold of some documentation of what the JS engine is capable of on the desktop versions so that we can write the source code in typescript and compile it to javascript that works. I fear that writing any real world code for this JS engine by hand will be too cumbersome.

[SE-Hubert]

The thing is that I was able to make it work on the Windows new Outlook application with no problems, its only on the Mac desktop app that its not working. Also, I was able to modify my addin so that it would show up on the Mac application, but I had to remove the LaunchEvents from the manifest and they provide crucial information for our add-in to work.

My guess is that its an error with the LaunchEvents on Mac.

[NickLWMP]

@SE-Hubert I should have clarified. Outlook NEW (for desktop) != to Classic Outlook Desktop. I would see if it works in one of the previous versions. I wonder if Outlook for Mac uses a similar approach to the classic desktop apps that have a limited javascript environment like I mentioned.