: Wordpress blog subdomain redirects to main site after switching to HTTPS While there are a number of online instructions to change Wordpress from HTTP to HTTPS, they are not working for me,

@Odierno851

Posted in: #Https #Subdomain #Wordpress

While there are a number of online instructions to change Wordpress from HTTP to HTTPS, they are not working for me, probably because my installation is in a subdomain.

Here is the starting situation:


The main website is at www.example.com with non-HTTP requests being redirected via a 301 to the HTTPS version, same for non-www versions such as example.com. Everything here is working as expected. This is NOT a Wordpress site.
The Wordpress blog is at blog.example.com and worked perfectly as is.


To change Wordpress over to HTTPS, I did a global search for blog.example.com and replaced all occurrences by blog.example.com both in the files (3 or 4 occurences) and in the database (1000s of occurences). Then added to the .htaccess of the subdomain which is hosted in a subdir (so public_html/blog/.htaccess whereas the site .htaccess is in public_html/.htaccess - all fairly standard configuration):

RewriteCond %{HTTPS} off
RewriteRule ^/?(.*)$ blog.example.com/ [R=301,L]


The RewriteEngine On line was already there, just one above where the two above were added.

While this has thankfully no impact on the site www.example.com, it has the rather unexpected behavior of no longer showing the blog. When accessing blog.example.com, the page shows the parent domain's content but not redirected. It still shows blog.example.com in the URL bar but the page itself is the same as www.example.com.
Just to confirm that those are the only changes made, I reverted and everything went back to normal.

Why does this show the parent domain?

What changes must be made so that blog.example.com shows the content currently shown at blog.example.com?

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