Enabling cross-origin isolation on the apache2 web server

Question

My system is Ubuntu and i use the apache2 web server. I need SharedArrayBuffer in my site. But when I call my page I get the error:

"Uncaught (in promise) ReferenceError: SharedArrayBuffer is not defined"

Answer 1

Well, I did some research and quickly found out that I had to add the following to the header:

Cross-Origin-Opener-Policy: same-origin
Cross-Origin-Embedder-Policy: require-corp

Now digging further.

in the console:

sudo nano /etc/apache2/apache2.conf

and changed AllowOverride None in AllowOverride All

<Directory /var/www/>
Options Indexes FollowSymLinks
AllowOverride All       
Require all granted
</Directory>

enabled mod headers

sudo a2enmod headers

then i restarted the apache2 server

sudo systemctl restart apache2

created in var/www:

.htaccess

Header set Access-Control-Allow-Origin "*"
Header set Cross-Origin-Opener-Policy: same-origin
Header set Cross-Origin-Embedder-Policy: require-corp

So now I have a cross origin isolated page.