Homepage Redirect Issue with Custom Permalinks and Static Page on Azure Front Door

Question

Hello,

I've encountered a redirect issue with my WordPress site configured behind Azure Front Door, and I hope to receive some guidance.

Setup Overview:

• Domain: I'm hosting the WordPress site on a custom domain using Azure Front Door. The application runs in a Linux container environment.
• WordPress Configuration: The WordPress site is set up to use Azure Web App as the backend service.

Issue Details:

• When I change the permalink structure from default to a custom format (e.g., /blog/%postname%/) and designate the homepage as a static page, any attempt to access the homepage results in a redirect loop.
• Interestingly, accessing other pages like /cart works without issue under the same settings.
• If I set permalinks to default, the entire site, including the homepage, works normally.
• Alternatively, if I select the latest posts instead of a static page for the homepage and keep the custom permalink structure, the site also functions correctly.

Steps Taken:

• Confirmed that routing and host headers in Azure Front Door are correct.
• Verified SSL configurations.
• Deactivated all plugins to eliminate them as a source of the problem.
• Examined Nginx configuration to verify if any redirects are present, but did not find any
• Found this post (https://learn.microsoft.com/en-us/answers/questions/238565/infinite-redirect-loop-on-homepage-after-migrating), but did not resolve my issue.

Could someone help identify why the combination of a static homepage with custom permalinks results in a redirect loop, and suggest how to address this issue while maintaining my current configuration preferences?

Thank you for your assistance!