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Outlook App - AADSTS90056: This endpoint only accepts POST requests. RRS feed

  • Question

  • Hi,

    I'm working on an Outlook Add-in which authenticates the user against Azure AD and runs queries against SharePoint Online sites. The app makes use of the ADAL.js library to conduct the authentication process. The app works well within the browser, however fails during the authentication process when used through the Windows Version of Outlook. Once the user inputs his username and password within the add-in in Outlook (Windows), and Internet Explorer window pops up with the message below:

    AADSTS90056: This endpoint only accepts POST requests.

    Has anyone been able to resolve this issue?

    Regards,

    Matt

    Thursday, July 21, 2016 6:33 PM

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