Power Platform Community Forum Thread Details

Hi everyone 👋

I have a PCF control that generates and downloads a PDF. This works fine on Windows devices (model-driven / desktop), but the same download does not work when the control is used inside a Canvas App.

The PDF is created successfully, but the download action is not triggered in Canvas Apps.

Is there a known limitation or a recommended approach for downloading files (PDFs) from PCF controls when hosted in Canvas Apps?

Any guidance would really help.

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General topics

Hi,

PCF controls behave differently in Model-Driven Apps and Canvas Apps. In Model-Driven Apps (desktop), triggering a file download directly from JavaScript usually works.

However, in Canvas Apps, direct browser-based download actions from a PCF control are often blocked due to sandboxing and security restrictions. That is why your PDF gets generated but the download does not trigger.

This is expected behavior rather than an issue in your code.

The recommended approach in Canvas Apps is to avoid triggering the download directly from the PCF.

Instead, you can: