dify - 💡(How to fix) Fix Sharepoint Plugin does not create full URI callback_uri attribute when authenticating with EntraID OAuth

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Dify version

1.14.2

Cloud or Self Hosted

Self Hosted (Docker)

Steps to reproduce

1. Install latest Sharepoint Plugin 0.2.9
2. Enter properly all the fields
3. Click on "Save and Authorize" button
4. It fails to authenticate, because it sends relative redirect_uri attribute to Microsoft Entra ID without protocol and domain name instead of full domain name with protocol. <img width="664" height="452" alt="Image" src="https://github.com/user-attachments/assets/6c94dd2a-d954-4588-aad9-541688ad4277" />

✔️ Expected Behavior

It should authenticate and close the popup.

It actually works in Dify 1.12.1 with Sharepoint plugin 0.2.9

❌ Actual Behavior

I get this error from Entra ID Oauth <img width="542" height="332" alt="Image" src="https://github.com/user-attachments/assets/f932612d-fe6f-45d3-8cbc-8c226792c163" />

Message: AADSTS90102: 'redirect_uri' value must be a valid absolute URI.

Repeats every time.