Joomla was generating a Category Blog layout for Uncategorised articles even though an explicit menu item was not created to do so.
With SEF URLs enabled, the URL always ended with “2-categorised”. For example:
https://mysite.com/a/2-categorised
https://mysite.com/b/2-categorised
No matter the subdirectory, it would display uncategorised articles in its default Category Blog layout — with 1 leading article, 4 intro articles in 2 columns, and 4 links at the bottom.
To “fix” this, I created a redirect to my 404 page, but you could redirect the user to whatever page you want.
| // Apache | |
| RewriteCond %{QUERY_STRING} ^$ | |
| RewriteRule (^|/)2-uncategorised$ /404 [R=301,L] | |
| // IIS | |
| <rule name="Joomla! Uncategorised Rule" stopProcessing="true"> | |
| <match url="^(.*)$" ignoreCase="false" /> | |
| <conditions logicalGrouping="MatchAny"> | |
| <add input="{URL}" pattern="(^|/)2-uncategorised$" ignoreCase="false" /> | |
| </conditions> | |
| <action type="Redirect" url="/404" redirectType="Permanent" /> | |
| </rule> |