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I have Apache 2.4 with these sites configured in the httpd-vhosts.conf file:

<VirtualHost *:80 *:8080 *:8084>
    DocumentRoot "c:\apache_php\sites\public"
    ServerName www.mydomain.com
</VirtualHost>


<VirtualHost *:80 *:8080 *:8081>
    DocumentRoot "c:\apache_php\sites\shared"
    ServerName shared.mydomain.com
</VirtualHost>

The shared.mydomain.com domain has a javascript file that I want to load in the www.mydomain.com/index.php with:

<script src="http://shared.mydomain.com:8081/js/file.js"></script>

I created an .htaccess file in the root of both the /public and /shared folders that contains this:

Header unset Content-Security-Policy
Header add Content-Security-Policy "script-src 'self' *.mydomain.com 'unsafe-inline' 'unsafe-eval'"

and I enabled mod_headers in the httpd.conf file:

LoadModule headers_module modules/mod_headers.so

I restarted Apache after adding the .htaccess files.

However, I keep getting:

Refused to load the script 'http://shared.mydomain.com:8081/js/file.js' because it violates the following Content Security Policy directive: "script-src 'none'". Note that 'script-src-elem' was not explicitly set, so 'script-src' is used as a fallback.
Refused to execute inline script because it violates the following Content Security Policy directive: "script-src 'none'". Either the 'unsafe-inline' keyword, a hash ('sha256-Ar45cH3tWULAEHfrKWcx2xAENlIAClGDIdLNu/5tKMY='), or a nonce ('nonce-...') is required to enable inline execution.

Whenever I try to load the index.php in the public site, if I look at the headers in the Inspector it says this for both the index.php file and the file.js:

Referrer Policy: strict-origin-when-cross-origin

I can't figure out where this is being set, or why the Headers in the .htaccess files aren't overriding this setting. I searched for this "Referrer Policy" in all the files in the apache folder and it didn't show up.

How can I get these errors to go away?

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    do not use Header unset and Header add, just use Header set or Header always set.. Also, paste the results of "curl" connecting to the url you are testing with parameters -I or -v so you can see the returned headers and can paste them here if necessary. Aug 4, 2023 at 12:13

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