Tag Archives: authentication

Azure Functions suddenly returning 403 when called from SPFx

Posted on April 4, 2025 by Dan

Microsoft has recently made a change to SharePoint Framework that might break existing solutions that use an Azure backend (e.g. a Function App) that is secured to only allow requests from SPFx apps. For us, our Azure Functions suddenly started … Continue reading →

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Securing an Azure Function with Entra ID and calling it from SPFx

Posted on February 7, 2025 by Dan

This post outlines how to limit access to an Azure Functions App so that only tenant users can access it, and how to then consume this function from an SPFx app in SharePoint. Updated: Use SharePoint Online Web Client Extensibility … Continue reading →

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Starter project for AzureAD authenticated communication with ASP.Net Core 6 API, React SPA and console app

Posted on October 1, 2022 by Dan

Setting up authentication for a new project is important but can be a pain since all the pieces must fit together perfectly. I recently struggled with one of my projects, and for future reference I decided to create a starter … Continue reading →

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Heads-up if you use ADAL.JS on a site added to the “Trusted Sites” zone

Posted on October 1, 2016 by Dan

When working on a SharePoint Online solution that is using the ADAL.JS library for authentication, a customer reported strange problems. In our solution, our site sends the client to the authentication authority (Azure AD), which authenticates the client and forwards … Continue reading →

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