Steps to replicate the issue (include links if applicable):

• Navigate to any Abstract Wikipedia talk page for an article in mainspace (e.g. Talk:Q80011)
• Click on the tab which says "Page", just below the article title

What happens?:
The URL changes to: https://abstract.wikipedia.org/view/en/Q80011, which is not a valid page.

What should have happened instead?:
The URL instead should be: https://abstract.wikipedia.org/wiki/Q80011