Make sure to set the canonical URL only if the URI string is not empty to avoid /0
as the href value in the profile view
#9837
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Summary of Changes
This PR will fix the following error in the profile view:
<link href="/0" rel="canonical">
For instance, you can open rich's profile page (https://www.kunena.org/forum/user/2198-rich) and check the source code. You will find the wrongly created canonical URL in the header section. This 404 link is made on each profile page and affects SEO.
Testing Instructions
Check any profile page in the latest release. Apply the patch, and the incorrect tag will no longer be created.