Preview in New Tab for CPT is linked to wrong URL.

[johnrobertmcc]

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Describe the bug

This 'Preview in new tab' should reroute to api/preview route. It redirects directly to / with a query string attached, sending user to the homepage.

To Reproduce
Steps to reproduce the behavior:

1. Create CPT
2. Draft a post
3. Click on preview -> Preview in New Tab
4. URL reroutes to / with query ?post_type=restaurant&p=535&preview=true attached

Expected behavior
This button should reroute to api/preview, with query string attached.

Desktop (please complete the following information):

• OS: Ubuntu 20
• Browser: Chrome, Chromium, Brave

Additional context
From CPT -> All Posts, preview is linked correctly to api/preview in quick edit options