How to use same origin through Apache HTTP Server
Updated Jan 16, 2026
If you're already running Apache HTTP Server as your main web server or reverse proxy, you can also configure it to proxy your server GTM request. Begin by adjusting your configuration, as shown in the next step.
This instruction uses /metrics as an example of the same origin path. You can use any of your own.
You should also use the URL of your sGTM container instead of https://sgtm.example.com.
Step 1: Enable the required modules
sudo a2enmod proxy
sudo a2enmod proxy_httpsudo a2enmod sslStep 2: Update your config
ServerName website.com
ProxyRequests off
ProxyPreserveHost off
SSLProxyEngine on
RequestHeader set X-Forwarded-For "%{REMOTE_ADDR}e"
RequestHeader set X-From-Cdn "cf‑stape"
RequestHeader set CF-Connecting-Ip "%{REMOTE_ADDR}e"
RequestHeader set Host "sgtm.example.com"
ProxyPass "/metrics" "https://sgtm.example.com"
ProxyPassReverse "/metrics" "https://sgtm.example.com"Step 3: Adjust your deployed script
Deploy the changes to your site.
After following these steps, add your /path for the same origin to the Custom Loader's settings. Check the article on Same Origin Path to do this.
If you are not using your own subdomain and are proxying requests to the standard Stape subdomain, you also need to add the X-Stape-Host header with the value of the host where the events are taking place (for instance, X-Stape-Host: www.example.com).
Testing your Same Origin setup
You can check that everything is configured correctly by sending a single test request using a GA4 tag.
1. Create a GA4 tag in your web GTM container.
Add your Measurement ID (any ID works for testing) and set the server_container_url to the same-origin path you configured (we'll use https://stape.work/metrics as an example).
2. (Optional) To streamline testing, add your same-origin path (in this example, it's https://stape.work/metrics) to your server GTM settings. Click Admin → Container Settings → enter the path under Server container URLs.
3. Open Preview mode in both your web GTM container and your server-side GTM container. If everything is set up correctly, the server container should open in preview at the new path you created.
4. Trigger a page view on your site. In the server container preview, you should now see an incoming page_view request from your website’s real domain.
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