'PDF file is insecure in WordPress [duplicate]

This may be a stupid question and have an obvious answer. My WordPress is serving pages over HTTPS/SSL correctly without any issues (no mixed contenting warding...etc)

However, I couldn't figure out why the page is insecure when I type this URL (w/o https://www.) in my browser:

example.com/wp-content/uploads/note.pdf

But this URL (with https://www.) is secure:

https://www.example.com/wp-content/uploads/note.pdf

wordpress .htaccess

Solution 1:^[1]

You need to setup redirection of non-secure URL addresses to their secure versions, this can be made by adding the following in your .htaccess file:

RewriteEngine On
RewriteCond %{HTTPS} !=on
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301,NE]

<IfModule mod_headers.c>
    Header always set Content-Security-Policy "upgrade-insecure-requests;"
</IfModule>

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution	Source
Solution 1

'PDF file is insecure in WordPress [duplicate]

Solution 1:[1]

Sources

Related Questions

Solution 1:^[1]