IsSetSupported not reliable

[aymen-kammoun]

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I am developping an addin for our customers and I'm testing with an Exchange 2013 account with office web app. I need to get the body of emails and appointments (in read mode) : if (Office.context.requirements.isSetSupported('Mailbox', '1.3')) { // use Office.context.mailbox.item.body.getAsync to get the body } else { // use Office.context.mailbox.makeEwsRequestAsync to get the body } The issue is that Office.context.requirements.isSetSupported('Mailbox', '1.3') returns true while body is undefined.

Expected Behavior

Office.context.requirements.isSetSupported('Mailbox', '1.3') should return false when using an Exchange 2013 account.

Current Behavior

Office.context.requirements.isSetSupported('Mailbox', '1.3') return true when using an Exchange 2013 account.

Steps to Reproduce, or Live Example

Not possible with Outlook Addin.

• Additional details:
  1. create an outlook addin
  2. use classis outlook web application
  3. use an Exchange 2013 account
  4. call Office.context.requirements.isSetSupported('Mailbox', '1.3') in javascript
  5. the call return true instead of false as expected

Context

Your Environment

• Platform [PC desktop, Mac, iOS, Office Online]: Online
• Host [Excel, Word, PowerPoint, etc.]: Outlook Web App
• Office version number: classic Outlook UI
• Operating System: Windows 10
• Browser (if using Office Online): Chrome

Useful logs

• [ ] Console errors
• [x] Screenshots
• [ ] Test file (if only happens on a particular file)

[exextoc]

Thanks for reporting this issue regarding IsSetSupported API. It has been put on our backlog. We unfortunately have no timelines to share at this point

[exextoc]

Internal tracking id: OutlookWeb: 90648

[cattermo]

I have similar problem with isSetSupported("PdfFile") returning true on Word on iPad. The documentation says clearly that it is not supported https://docs.microsoft.com/en-us/javascript/api/office/office.document?view=word-js-preview.

[exextoc]

@cattermo I checked on the issue described in this thread and it only impacts isSetSupported in OWA on Exchange 2013. Could you please open a new issue for the behavior in Word on iPad? This will help us get the issue to the right people to investigate.

If you think the issue is purely documentation-related, you can optionally use the Feedback link on the bottom of the documentation to open an issue over in office-js-docs-reference.

[ElizabethSamuel-MSFT]

I have similar problem with isSetSupported("PdfFile") returning true on Word on iPad. The documentation says clearly that it is not supported https://docs.microsoft.com/en-us/javascript/api/office/office.document?view=word-js-preview.

@cattermo Thanks for asking about this and for opening issue https://github.com/OfficeDev/office-js/issues/1391. We verified that PdfFile is actually now supported in Word on iPad and so your problem is unrelated to the original issue reported here. We're updating the documentation in PRs https://github.com/OfficeDev/office-js-docs-pr/pull/3068 and https://github.com/DefinitelyTyped/DefinitelyTyped/pull/57065.

Thanks.