login.microsoftonline.com refused to connect on xFrame

Question

Hi All,

I'm facing "login.microsoftonline.com refused to connect" while making a digital signature approval on a document which loads an xFrame to re-authenticate with username and password.
This issue occurs in all of the browsers in our Test environment. Whereas I'm not getting this error on our Dev and Train environments which uses the same SSO configuration.
Note: This issue happens only for Microsoft Azure AD and not with other identity providers.

Answer 1

Hi @Sriman Ilancheran ,

This seems to be a known issue with x-frame-options. To prevent clickjacking, login pages are prevented from being displayed inside frames.

A few things to try:

Please check if login.microsoftonline.com cookies are blocked. Recent Chrome releases on all platforms and Safari on macOS block or remove cookies.

Ensure that you have allowed "third party cookies" in the browsers.

Related threads which you may have seen:

https://stackoverflow.com/questions/40795633/x-frame-option-deny-error-when-aad-sign-in-in-office-add-in

https://blog.atwork.at/medium.aspx?id=c14c3ae3-3aba-429d-a748-b74283dbd463&date=/post/2020/09/13

https://learn.microsoft.com/en-us/answers/questions/387682/loginmicrosoftonline-refused-to-connect-from-ifram.html

Another resolution is to use popups/add-in communication via web sockets in your app to handle the login request: https://learn.microsoft.com/en-us/archive/blogs/richard_dizeregas_blog/connecting-to-office-365-from-an-office-add-in#mastering-the-popup

Let me know if this helps.

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Answer 2

1234567890

Answer 3

all is good