# Collabora CODE Server on docker fails to load document **URL:** \ **Category:** đź“„ Office\ **Tags:** docker, collabora-online\ **Created:** [December 25, 2021, 5:25pm UTC](https://help.nextcloud.com/t/collabora-code-server-on-docker-fails-to-load-document/129941 "2021-12-25T17:25:21Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![KevinKraze](https://help.nextcloud.com/letter_avatar/kevinkraze/32/5_5575768a8748004e209b776fc1b2916d.png) [@KevinKraze](https://help.nextcloud.com/u/KevinKraze)\ **Post date:** [December 25, 2021, 5:25pm UTC](https://help.nextcloud.com/t/collabora-code-server-on-docker-fails-to-load-document/129941/1 "2021-12-25T17:25:21Z")
Hi there and merry Christmas, I am having this issue with Collabora. I am currently running it in docker on an RPi 4 with 4 GB of ram. In the nextcloud settings, it says that the CODE server is reachable, however, when I try to open a document, it gives the error: “Document loading failed Failed to load nextcloud office - please try again later” I am running collabora without ssl as it is handled by reverse proxy (haproxy). In the docker logs for the NC container, the only entry I get regarding collabora is this: ```auto [25/Dec/2021:17:21:15 +0000] "GET /apps/richdocuments/index?fileId=6097&requesttoken=tJrUR1qPfKFTV%2FaHtRSnQQs0H15XusDPL%2FXUnjCrsxE%3D%3AjPiNMxHVLvsSD5LggHHCcjNCfT8i1%2FaberOZ7kmcylw%3D&path=%2FNew%20document.docx HTTP/1.1" 200 8551 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36" ``` In the browser logs, I get this error when loading the page: ```auto Mixed Content: The page at 'https://cloud.example.com/apps/files/?dir=/&fileid=6' was loaded over HTTPS, but requested an insecure form action 'http://office.example.com/browser/1e92cc5cf/cool.html?WOPISrc=https%3A%2F%2Fcloud.dwbi.ca%2Findex.php%2Fapps%2Frichdocuments%2Fwopi%2Ffiles%2F6097_oce68x1fko9q&title=New%20document.docx&lang=en&closebutton=1&revisionhistory=1'. This request has been blocked; the content must be served over HTTPS. ``` Clearly something is going on with the proxy settings within collabora but I have no idea what exactly. In nextcloud.log i get no information regarding collabora. Any help appreciated. System Info: RPi 4 Ubuntu Server 20.04 Nextcloud 23 ---
**Author:** ![wwe](https://help.nextcloud.com/user_avatar/help.nextcloud.com/wwe/32/72963_2.png) [@wwe](https://help.nextcloud.com/u/wwe)\ **Post date:** [December 26, 2021, 4:52pm UTC](https://help.nextcloud.com/t/collabora-code-server-on-docker-fails-to-load-document/129941/2 "2021-12-26T16:52:30Z")
this looks like the reason is: > [@KevinKraze](#): > > `http://office.example.com/browser` most likely you configure collabora container with `http://` while it must be https:// (make sure **both** Nextcloud **and** the client can reach collabora using https:// with valid TLS certificate) ---
**Author:** ![KevinKraze](https://help.nextcloud.com/letter_avatar/kevinkraze/32/5_5575768a8748004e209b776fc1b2916d.png) [@KevinKraze](https://help.nextcloud.com/u/KevinKraze)\ **Post date:** [December 26, 2021, 10:03pm UTC](https://help.nextcloud.com/t/collabora-code-server-on-docker-fails-to-load-document/129941/3 "2021-12-26T22:03:47Z")
I was able to fix the https error by disabling the “enable” setting and enabling the “termination” setting under the ssl category in coolwsd.xml. Now however, I am getting a completely different error with WOPi check file info failing: ```auto nextcloud-collabora | wsd-00001-00056 2021-12-26 21:50:59.878007 +0000 [docbroker_003] WRN Waking up dead poll thread [HttpSynReqPoll], started: false, finished: false| ./net/Socket.hpp:718 nextcloud-collabora | wsd-00001-00056 2021-12-26 21:50:59.878468 +0000 [docbroker_003] ERR Socket #29 SSL error: SYSCALL (5) (EPIPE: Broken pipe)| ./net/SslSocket.hpp:279 nextcloud-collabora | wsd-00001-00056 2021-12-26 21:50:59.878624 +0000 [docbroker_003] ERR Socket #29 SSL error: SYSCALL (5) (EPIPE: Broken pipe)| ./net/SslSocket.hpp:279 nextcloud-collabora | wsd-00001-00056 2021-12-26 21:50:59.878682 +0000 [docbroker_003] ERR #29: Socket read returned -1 (EPIPE: Broken pipe)| ./net/Socket.hpp:1121 nextcloud-collabora | wsd-00001-00056 2021-12-26 21:50:59.878760 +0000 [docbroker_003] ERR Socket #29 SSL error: SYSCALL (5) (EPIPE: Broken pipe)| ./net/SslSocket.hpp:279 nextcloud-collabora | wsd-00001-00056 2021-12-26 21:50:59.878828 +0000 [docbroker_003] ERR Socket #29 SSL error: SYSCALL (5) (EPIPE: Broken pipe)| ./net/SslSocket.hpp:279 nextcloud-collabora | wsd-00001-00056 2021-12-26 21:50:59.878929 +0000 [docbroker_003] ERR #29: Socket write returned -1 (EPIPE: Broken pipe)| ./net/Socket.hpp:1381 nextcloud-collabora | wsd-00001-00056 2021-12-26 21:50:59.879010 +0000 [docbroker_003] ERR Socket #29 SSL error: SYSCALL (5) (EPIPE: Broken pipe)| ./net/SslSocket.hpp:279 nextcloud-collabora | wsd-00001-00056 2021-12-26 21:50:59.879087 +0000 [docbroker_003] ERR Socket #29 SSL error: SYSCALL (5) (EPIPE: Broken pipe)| ./net/SslSocket.hpp:279 nextcloud-collabora | wsd-00001-00056 2021-12-26 21:50:59.879141 +0000 [docbroker_003] ERR #29: Socket write returned -1 (EPIPE: Broken pipe)| ./net/Socket.hpp:1381 nextcloud-collabora | wsd-00001-00056 2021-12-26 21:50:59.879360 +0000 [docbroker_003] ERR WOPI::CheckFileInfo failed for URI [https://cloud.example.com/index.php/apps/richdocuments/wopi/files/6097_oce68x1fko9q?access_token=kqysovLAQyf2amzlp45APXuutqQKAP08&access_token_ttl=0]: 0 . Headers: Body: []| wsd/Storage.cpp:690 nextcloud-collabora | wsd-00001-00056 2021-12-26 21:50:59.879603 +0000 [docbroker_003] ERR loading document exception: WOPI::CheckFileInfo failed: | wsd/DocumentBroker.cpp:1913 nextcloud-collabora | wsd-00001-00056 2021-12-26 21:50:59.879742 +0000 [docbroker_003] ERR Failed to add session to [/index.php/apps/richdocuments/wopi/files/6097_oce68x1fko9q] with URI [https://cloud.example.com/index.php/apps/richdocuments/wopi/files/6097_oce68x1fko9q?access_token=kqysovLAQyf2amzlp45APXuutqQKAP08&access_token_ttl=0]: WOPI::CheckFileInfo failed: | wsd/DocumentBroker.cpp:1875 nextcloud-collabora | wsd-00001-00056 2021-12-26 21:50:59.879844 +0000 [docbroker_003] ERR Storage error while starting session on /index.php/apps/richdocuments/wopi/files/6097_oce68x1fko9q for socket #20. Terminating connection. Error: WOPI::CheckFileInfo failed: | wsd/COOLWSD.cpp:3690 nextcloud-collabora | wsd-00001-00056 2021-12-26 21:50:59.880336 +0000 [docbroker_003] WRN Ignoring attempted read from 20| ./net/Socket.hpp:1095 nextcloud-collabora | wsd-00001-00056 2021-12-26 21:50:59.880456 +0000 [docbroker_003] ERR Invalid or unknown session [04d] to remove.| wsd/DocumentBroker.cpp:1956 nextcloud-collabora | wsd-00001-00038 2021-12-26 21:51:00.580317 +0000 [websrv_poll] WRN DocBroker with docKey [/index.php/apps/richdocuments/wopi/files/6097_oce68x1fko9q] that is marked to be destroyed. Rejecting client request.| wsd/COOLWSD.cpp:2277 nextcloud-collabora | wsd-00001-00038 2021-12-26 21:51:00.580685 +0000 [websrv_poll] ERR Error while handling Client WS Request: Failed to create DocBroker with docKey [/index.php/apps/richdocuments/wopi/files/6097_oce68x1fko9q].| wsd/COOLWSD.cpp:3719 nextcloud-collabora | wsd-00001-00038 2021-12-26 21:51:00.580776 +0000 [websrv_poll] ERR #20: Socket write returned -1 (EPIPE: Broken pipe)| ./net/Socket.hpp:1381 nextcloud-collabora | wsd-00001-00038 2021-12-26 21:51:00.580869 +0000 [websrv_poll] ERR #20: Socket write returned -1 (EPIPE: Broken pipe)| ./net/Socket.hpp:1381 nextcloud-collabora | wsd-00001-00038 2021-12-26 21:51:00.580917 +0000 [websrv_poll] WRN Socket #20 is shutting down but 64 bytes couldn't be flushed and still remain in the output buffer.| ./net/WebSocketHandler.hpp:771 nextcloud-collabora | wsd-00001-00038 2021-12-26 21:51:00.580977 +0000 [websrv_poll] ERR #20: attempted to remove: 893 which is > size: 0 clamped to 0| ./net/Socket.hpp:1210 nextcloud-collabora | wsd-00001-00038 2021-12-26 21:51:00.581220 +0000 [websrv_poll] WRN Ignoring attempted read from 20| ./net/Socket.hpp:1095 nextcloud-collabora | wsd-00001-00038 2021-12-26 21:51:00.581282 +0000 [websrv_poll] ERR #20: Socket write returned -1 (EPIPE: Broken pipe)| ./net/Socket.hpp:1381 nextcloud-collabora | kit-00057-00034 2021-12-26 21:51:00.728456 +0000 [kit_spare_004] ERR mknod(/opt/cool/child-roots/xSXLjv258C6Glhxt//tmp/dev/random) failed. Mount must not use nodev flag. (EPERM: Operation not permitted)| common/JailUtil.cpp:249 nextcloud-collabora | kit-00057-00034 2021-12-26 21:51:00.728657 +0000 [kit_spare_004] ERR mknod(/opt/cool/child-roots/xSXLjv258C6Glhxt//tmp/dev/urandom) failed. Mount must not use nodev flag. (EPERM: Operation not permitted)| common/JailUtil.cpp:261 nextcloud-collabora | wsd-00001-00033 2021-12-26 21:51:01.880917 +0000 [prisoner_poll] WRN Prisoner connection disconnected but without valid socket.| wsd/COOLWSD.cpp:2364 nextcloud-collabora | wsd-00001-00058 2021-12-26 21:51:02.589956 +0000 [docbroker_004] WRN Waking up dead poll thread [HttpSynReqPoll], started: false, finished: false| ./net/Socket.hpp:718 nextcloud-collabora | wsd-00001-00058 2021-12-26 21:51:02.590164 +0000 [docbroker_004] ERR Socket #29 SSL error: SYSCALL (5) (EPIPE: Broken pipe)| ./net/SslSocket.hpp:279 nextcloud-collabora | wsd-00001-00058 2021-12-26 21:51:02.590253 +0000 [docbroker_004] ERR Socket #29 SSL error: SYSCALL (5) (EPIPE: Broken pipe)| ./net/SslSocket.hpp:279 nextcloud-collabora | wsd-00001-00058 2021-12-26 21:51:02.590304 +0000 [docbroker_004] ERR #29: Socket read returned -1 (EPIPE: Broken pipe)| ./net/Socket.hpp:1121 nextcloud-collabora | wsd-00001-00058 2021-12-26 21:51:02.590381 +0000 [docbroker_004] ERR Socket #29 SSL error: SYSCALL (5) (EPIPE: Broken pipe)| ./net/SslSocket.hpp:279 nextcloud-collabora | wsd-00001-00058 2021-12-26 21:51:02.590449 +0000 [docbroker_004] ERR Socket #29 SSL error: SYSCALL (5) (EPIPE: Broken pipe)| ./net/SslSocket.hpp:279 nextcloud-collabora | wsd-00001-00058 2021-12-26 21:51:02.590505 +0000 [docbroker_004] ERR #29: Socket write returned -1 (EPIPE: Broken pipe)| ./net/Socket.hpp:1381 nextcloud-collabora | wsd-00001-00058 2021-12-26 21:51:02.590564 +0000 [docbroker_004] ERR Socket #29 SSL error: SYSCALL (5) (EPIPE: Broken pipe)| ./net/SslSocket.hpp:279 nextcloud-collabora | wsd-00001-00058 2021-12-26 21:51:02.590623 +0000 [docbroker_004] ERR Socket #29 SSL error: SYSCALL (5) (EPIPE: Broken pipe)| ./net/SslSocket.hpp:279 nextcloud-collabora | wsd-00001-00058 2021-12-26 21:51:02.590678 +0000 [docbroker_004] ERR #29: Socket write returned -1 (EPIPE: Broken pipe)| ./net/Socket.hpp:1381 nextcloud-collabora | wsd-00001-00058 2021-12-26 21:51:02.590856 +0000 [docbroker_004] ERR WOPI::CheckFileInfo failed for URI [https://cloud.example.com/index.php/apps/richdocuments/wopi/files/6097_oce68x1fko9q?access_token=kqysovLAQyf2amzlp45APXuutqQKAP08&access_token_ttl=0&permission=edit]: 0 . Headers: Body: []| wsd/Storage.cpp:690 nextcloud-collabora | wsd-00001-00058 2021-12-26 21:51:02.591101 +0000 [docbroker_004] ERR loading document exception: WOPI::CheckFileInfo failed: | wsd/DocumentBroker.cpp:1913 nextcloud-collabora | wsd-00001-00058 2021-12-26 21:51:02.591220 +0000 [docbroker_004] ERR Failed to add session to [/index.php/apps/richdocuments/wopi/files/6097_oce68x1fko9q] with URI [https://cloud.example.com/index.php/apps/richdocuments/wopi/files/6097_oce68x1fko9q?access_token=kqysovLAQyf2amzlp45APXuutqQKAP08&access_token_ttl=0&permission=edit]: WOPI::CheckFileInfo failed: | wsd/DocumentBroker.cpp:1875 nextcloud-collabora | wsd-00001-00058 2021-12-26 21:51:02.591322 +0000 [docbroker_004] ERR Storage error while starting session on /index.php/apps/richdocuments/wopi/files/6097_oce68x1fko9q for socket #21. Terminating connection. Error: WOPI::CheckFileInfo failed: | wsd/COOLWSD.cpp:3690 nextcloud-collabora | wsd-00001-00058 2021-12-26 21:51:02.591692 +0000 [docbroker_004] WRN Ignoring attempted read from 21| ./net/Socket.hpp:1095 nextcloud-collabora | wsd-00001-00058 2021-12-26 21:51:02.591786 +0000 [docbroker_004] ERR Invalid or unknown session [04f] to remove.| wsd/DocumentBroker.cpp:1956 nextcloud-collabora | sh: 1: /usr/bin/coolmount: Operation not permitted nextcloud-collabora | frk-00034-00034 2021-12-26 21:51:03.745585 +0000 [forkit] ERR Failed to unmount [/opt/cool/child-roots/WP7MJlL7Am0MqSGb/tmp]| common/JailUtil.cpp:70 nextcloud-collabora | sh: 1: /usr/bin/coolmount: Operation not permitted nextcloud-collabora | frk-00034-00034 2021-12-26 21:51:03.788810 +0000 [forkit] ERR Failed to unmount [/opt/cool/child-roots/WP7MJlL7Am0MqSGb/lo]| common/JailUtil.cpp:70 nextcloud-collabora | sh: 1: /usr/bin/coolmount: Operation not permitted nextcloud-collabora | frk-00034-00034 2021-12-26 21:51:03.831479 +0000 [forkit] ERR Failed to unmount [/opt/cool/child-roots/WP7MJlL7Am0MqSGb]| common/JailUtil.cpp:70 nextcloud-collabora | wsd-00001-00033 2021-12-26 21:51:04.592147 +0000 [prisoner_poll] WRN Prisoner connection disconnected but without valid socket.| wsd/COOLWSD.cpp:2364 nextcloud-collabora | kit-00065-00034 2021-12-26 21:51:05.117640 +0000 [kit_spare_005] ERR mknod(/opt/cool/child-roots/vbdFfnCX1QF09m8B//tmp/dev/random) failed. Mount must not use nodev flag. (EPERM: Operation not permitted)| common/JailUtil.cpp:249 nextcloud-collabora | kit-00065-00034 2021-12-26 21:51:05.117820 +0000 [kit_spare_005] ERR mknod(/opt/cool/child-roots/vbdFfnCX1QF09m8B//tmp/dev/urandom) failed. Mount must not use nodev flag. (EPERM: Operation not permitted)| common/JailUtil.cpp:261 nextcloud-collabora | sh: 1: /usr/bin/coolmount: Operation not permitted nextcloud-collabora | frk-00034-00034 2021-12-26 21:51:05.329099 +0000 [forkit] ERR Failed to unmount [/opt/cool/child-roots/xSXLjv258C6Glhxt/tmp]| common/JailUtil.cpp:70 nextcloud-collabora | sh: 1: /usr/bin/coolmount: Operation not permitted nextcloud-collabora | frk-00034-00034 2021-12-26 21:51:05.371662 +0000 [forkit] ERR Failed to unmount [/opt/cool/child-roots/xSXLjv258C6Glhxt/lo]| common/JailUtil.cpp:70 nextcloud-collabora | sh: 1: /usr/bin/coolmount: Operation not permitted nextcloud-collabora | frk-00034-00034 2021-12-26 21:51:05.414203 +0000 [forkit] ERR Failed to unmount [/opt/cool/child-roots/xSXLjv258C6Glhxt]| common/JailUtil.cpp: ``` ---
**Author:** ![wwe](https://help.nextcloud.com/user_avatar/help.nextcloud.com/wwe/32/72963_2.png) [@wwe](https://help.nextcloud.com/u/wwe)\ **Post date:** [December 27, 2021, 7:46am UTC](https://help.nextcloud.com/t/collabora-code-server-on-docker-fails-to-load-document/129941/4 "2021-12-27T07:46:57Z")
I assume you still have some issues in tern which component communicates how with others. My setup looks like this: ![image](https://help.nextcloud.com/uploads/default/original/3X/0/a/0ae0439c1d01d88c0c1b75b68f9c1f64b41c31dc.png) - each URL is https - TLS termination is done at reverse proxy, communication behind reverse proxy is plain http - connections between Nextcloud and Collabora container flow through reverse proxy (because direct connection has no TLS) Maybe there are other way to setup but you should keep in mind how the access works: - once the the client access a a file and wants to edit is using Collabora - Nextcloud generates URL and access token for this file and passes it to the client (simplified: https:/collaboraurl?openfile=[https://nextcloudurl/file=xyz&token=secret](https://nextcloudurl/file=xyz&token=secret)) - Collabora in turn access the file on [https://nextcloudurl/file=xyz](https://nextcloudurl/file=xyz) remotely and provides editing features this is why each component must be reachable using valid public URL (with https) in detail: client must reach both NC and Collabora, Collabora must reach NC and NC must reach Collabora. In my eyes the easiest way is to have only one entry point (reverse proxy) where you can do TLS handling and avoid complexity of TLS behind the RP which adds a challenge that _internal_ communications between Nextcloud and Collabora must flow through RP as well. take a look at the docker config here: > [@Docker Compose for Nextcloud + Collabora + Traefik?](https://help.nextcloud.com/t/docker-compose-for-nextcloud-collabora-traefik/127733/2): > > I have such setup running 1,5y and survived 2 major updates and hardware move without issues, the setup is stable. maybe this is the least problematic advanced feature of NC… (works much more stable than talk+coturn). as I don’t use Collabora often first start takes multiple seconds but then it works good on old i3 desktop… The only big problem I experienced was Collabora outage for multiple weeks caused by Collabora until I discovered the solution in Collabora forums (Collabora+SNI). The prob… ---
**Author:** ![KevinKraze](https://help.nextcloud.com/letter_avatar/kevinkraze/32/5_5575768a8748004e209b776fc1b2916d.png) [@KevinKraze](https://help.nextcloud.com/u/KevinKraze)\ **Post date:** [December 27, 2021, 11:41pm UTC](https://help.nextcloud.com/t/collabora-code-server-on-docker-fails-to-load-document/129941/5 "2021-12-27T23:41:25Z")
I was able to fix it! I realized that in my /etc/hosts file, I set 127.0.0.1 as my nextcloud domain while trying to fix one of my previous errors. So, when collabora was trying to connect to the nextcloud domain, it would connect to 127.0.0.1:443. Commenting that out fixed the problem! ---
**Author:** ![wwe](https://help.nextcloud.com/user_avatar/help.nextcloud.com/wwe/32/72963_2.png) [@wwe](https://help.nextcloud.com/u/wwe)\ **Post date:** [December 14, 2024, 2:37pm UTC](https://help.nextcloud.com/t/collabora-code-server-on-docker-fails-to-load-document/129941/6 "2024-12-14T14:37:09Z")