Sign-in & Login Problems

Fix Blank Login Window for Microsoft Loop Jira Integration

Maira Mehtab Sep 22, 2026 869 views

Question details

The user experiences a blank sign-in window when attempting to authenticate the Jira Cloud integration within Microsoft Loop, preventing the connection.

Product: Microsoft Loop, Jira Cloud
Device & OS: not provided
Scenario: Attempting to link or authenticate Jira Cloud within Microsoft Loop after clicking Proceed or Accept.
Observed behavior: The authentication window stalls and remains completely blank, even though the same Jira integration works successfully through Microsoft Teams.

Before you start

Verify that your internet connection is stable and check if the Jira Cloud integration is currently functioning in Microsoft Teams to confirm the issue is isolated to Microsoft Loop.

Solution 1Recommended

Use InPrivate Browsing and Clear Browser Cache

Bypass corrupted or outdated authentication data by signing in through a private browser window, then clear your standard browser's cache.

When integrating external apps like Jira with Microsoft Loop, your web browser stores temporary authentication tokens. If these tokens become corrupted, the sign-in redirect fails to load properly, resulting in a blank window.

Open an InPrivate Window

Launch your web browser and open a new InPrivate or Incognito window (usually accessed by pressing Ctrl+Shift+N or via the browser's main menu).

Access Microsoft Loop

Navigate to the Microsoft Loop web interface in the private window and sign in to your Microsoft account.

Reattempt the Integration

Try connecting to the Jira Cloud integration again. If the login window loads correctly and allows you to sign in, the issue is tied to your browser cache.

Clear Cached Data

Return to your normal browser window, open the browser settings, navigate to privacy or history settings, and clear your cached images, files, and cookies for both Microsoft Loop and Jira.

Solution 2

Contact Your Microsoft 365 Administrator

If local browser troubleshooting fails, the problem may require backend investigation of service logs.

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Frequently Asked Questions

Why is the Microsoft Loop authentication window blank when adding Jira?

A blank authentication window is typically caused by corrupted browser cache, outdated cookies, or temporary server-side script failures that prevent the secure login page from rendering correctly.

Does Jira integration work differently in Microsoft Teams than in Loop?

Yes. While both are Microsoft products, Teams and Loop handle third-party application authentication through different internal services and rendering engines. This means an integration like Jira might work perfectly in Teams but experience cache or token issues in Loop.

Will disabling my browser extensions fix the blank login screen?

It is highly likely. Ad blockers, privacy extensions, or pop-up blockers often mistake secondary authentication windows for intrusive pop-ups. Disabling them temporarily or using an InPrivate window can bypass this block.

Login & Account Issues