Drag&Drop to Outlook add-in

Alexander Z 1 Reputation point
2021-03-31T16:14:44.4+00:00

I have a problem with Outlook 365 add-in we are developing. The add-in should accept files dragged from user desktop. The web page is working fine with Drag&Drop in any browser: IE, Edge, Opera.

Same web page in add-in accepts only files dragged from Office 365 Application and doesn't accept anything from Outlook, user desktop, any other website or app.

So in fact add-in is droppable and working fine, but only for files dragged from Office 365 App.

Is there any special security setting in place?

Office Development
Office Development
Office: A suite of Microsoft productivity software that supports common business tasks, including word processing, email, presentations, and data management and analysis.Development: The process of researching, productizing, and refining new or existing technologies.
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  1. JeffYang-MSFT 6,241 Reputation points Microsoft Vendor
    2021-04-01T06:40:44.993+00:00

    Hi @Alexander Z ,

    Welcome!

    Not know much about add-in develop, however, I knew an existed add-in which could help achieve the similar goal. For your reference: Outlook File Drag. (Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.)

    Hope this can be helpful.

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