Admin panel ignores custom port in URLs

[EloyCubo]

Current Behavior

When the Pterodactyl Panel is accessed through a non-standard port, URLs generated within the Admin section omit the port number.
For example, when the panel is accessed through:
http://123.456.789:2548/
the Admin section itself loads correctly:
http://123.456.789:2548/admin
However, navigating to pages through the Admin sidebar generates URLs without the configured port.
For example, clicking Servers generates:
http://123.456.789/admin/servers
instead of:
http://123.456.7892548/admin/servers
The same issue occurs with certain forms/actions in the Admin panel. For example, submitting a form such as changing the panel name can result in a URL that also omits :2548.
Because the generated URL points to the default HTTP port instead of the port where the panel is running, the browser cannot reach the intended page.
The regular/user panel does not appear to have this issue. For example:
http://123.456.789:2548/server/ff319eec
correctly navigates to:
http://123.456.789:2548/server/ff319eec/files
This suggests that the issue is specific to URL generation/navigation in the Admin section.

Expected Behavior

All URLs generated by the Pterodactyl Admin panel should preserve the port used to access the panel.
If the panel is accessed through:
http://123.456.789:2548/
then Admin routes should preserve :2548, for example:
http://123.456.789:2548/admin
http://123.456.789:2548/admin/servers
and other Admin navigation links and form actions should also retain the same port.
The behavior should be consistent with the regular/user panel, where generated URLs correctly preserve the non-standard port.

Steps to Reproduce

1. Configure the Pterodactyl Panel to run on a non-standard HTTP port, for example 2548.
2. Access the panel using:
   http://123.456.789:2548/
3. Navigate to the Admin section:
   http://123.456.789:2548/admin
4. Confirm that the Admin dashboard loads correctly.
5. In the Admin sidebar, click Servers (or another Admin page).
6. Observe the URL generated by the browser.
7. The browser navigates to:
   http://123.456.789/admin/servers
8. The expected URL would be:
   http://123.456.789:2548/admin/servers
9. The same issue can also be reproduced with certain Admin forms/settings. Submit an affected form and observe that the resulting URL also omits :2548.

Panel Version

1.14.1

Wings Version

1.13.1

Games and/or Eggs Affected

No response

Docker Image

No response

Error Logs

Is there an existing issue for this?

• I have searched the existing issues before opening this issue. I understand that maintainers may close this issue without communication if I have not provided sufficient information.

[PadowYT2]

If the application URL (APP_URL in .env) is set to be without a port, that's the reason for this behavior. Can you confirm, if you have the port there?

[EloyCubo]

If the application URL (APP_URL in .env) is set to be without a port, that's the reason for this behavior. Can you confirm, if you have the port there?

yes i have the port in APP_URL

[SkyMulley]

This doesn't seem like an issue with Pterodactyl. The admin panel uses the HOST header to build URLs instead of using the APP_URL, so this feels like something upstream with your web server.