Confluence Search return "Something went wrong" after session timed out instead of redirecting user to Login page.

Issue Summary

Confluence Search return "Something went wrong" after session timed out instead of redirecting user to Login page.

Environment

Confluence version 6.14.0

Steps to Reproduce

1. Login into Confluence.
2. Open a new browser tab and access any Confluence page in the new tab.
3. Logout from Confluence in the first browser tab (in Step 1).
4. In the new browser tab, Click the search box and search for any keyword.

Expected Results

Confluence will redirect user to a Login page since the session is terminated/expired when user logout in the other tab.

Actual Results

Confluence does not redirect user to a Login page.

The following message return in the Search box when user tried to search after session timed out:

Something went wrong. Refresh the page, or contact your admin if this keeps happening.

Notes

The issue can be replicated when the default session timed out (60 minutes) without manually Logout from Confluence in other tab.

Workaround

Logout then re login into Confluence to perform the search