# Collabora does not work behind reverse proxy

**URL:** <https://help.nextcloud.com/t/collabora-does-not-work-behind-reverse-proxy/186251>\
**Category:** 📄 Office\
**Tags:** reverseproxy, nc28, office, wopi\_allowlist, collabora-online, proxmox, setup\_warning\
**Created:** [March 24, 2024, 11:54am UTC](https://help.nextcloud.com/t/collabora-does-not-work-behind-reverse-proxy/186251 "2024-03-24T11:54:48Z")\
**Posts on this page:** 1\
**Showing post:** 6

<div class="post-metadata">

**Author:** ![scubamuc](https://help.nextcloud.com/user_avatar/help.nextcloud.com/scubamuc/32/63165_2.png) [@scubamuc](https://help.nextcloud.com/u/scubamuc)\
**Post date:** [May 25, 2025, 7:48pm UTC](https://help.nextcloud.com/t/collabora-does-not-work-behind-reverse-proxy/186251/6 "2025-05-25T19:48:21Z")

</div>

> [@ciropom](#):
>
> `"wopi_allowlist": "127.0.0.1, 45.151.88.100",`

remove the space after the comma see [[BUG]: Invalid WOPI Allow list isn't communicated to the user · Issue #2685 · nextcloud/richdocuments · GitHub](https://github.com/nextcloud/richdocuments/issues/2685#issuecomment-1359358738)

```auto

    Fail: 127.0.0.1 45.151.88.100
    Fail: 127.0.0.1, 45.151.88.100
    Work: 127.0.0.1,45.151.88.100

```

you may want to consider using `aliasgroups` instead of WOPI: [Install & configure Collabora CODE on Nextcloud with Docker](https://help.nextcloud.com/t/install-configure-collabora-code-on-nextcloud-with-docker/216725#p-651175-create-and-run-docker-stack-3)

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_[View the full topic](https://help.nextcloud.com/t/collabora-does-not-work-behind-reverse-proxy/186251)._