Resolve logout logic

[libpitt]

Currently, the logout functionality on the portal is not making any requests. Resolve.

[libpitt]

Findings

From ingest-api a redirect(globus_logout_url) is being made. But this is insufficient to correctly log user out of Globus.

after doing whatever cleanup it needs to do (e.g., delete access tokens), it should redirect the user’s web browser

According to Globus' docs, it is required that the user's browser is redirected to the logout page so that cookies etc can be cleared.

The content on https://auth.globus.org/v2/web/logout has restrictions, and unfortunately a strategy like using a hidden iframe to log user out while keeping them on SenNet UI also doesn't work.

Making fetch or vanilla XMLHttpRequest request to the logout URL also does not log user out completely from Globus. However, making a simple GET request to the URL with an API testing tool, does log the user out completely. Probably can investigate more or just keep with the Globus logout confirmation page.