Clicking a link from a Label List Macro/Popular labels macro results in a "Page Not Found"

Issue Summary

Whenever you click on a link from a Label List Macro/Popular labels macro, you receive a Page Not Found error, despite it working if you open the link in a new tab.

Environment

• Old and New Editor

Steps to Reproduce

1. Create some pages and add some labels to it
2. Now, in another page, add a Label List Macro/Popular labels macro
3. Publish the page
4. Click on a link from the label list macro/Popular labels macro

Expected Results

You would be redirected to the list of pages including the label you've clicked

Actual Results

You get a Page Not Found

Workaround

Open the link in a new tab or refresh the page.