Collabora doesn't load document

I’ve setup my Nextcloud- and Collabora-Server on the same Machine.
I have two Domains (cloud/office) which point to that Server.
Now when i would edit a file, Collabora shows up but it doesn’t load the file.

NameVirtualHost *:443
<VirtualHost *:443>

# General setup for the virtual host, inherited from global configuration
DocumentRoot "/var/www/html/nextcloud"
ServerName cloud.comain.com

ErrorLog logs/ssl_error_log
TransferLog logs/ssl_access_log
LogLevel warn


SSLEngine on

SSLProtocol all -SSLv2

SSLCipherSuite HIGH:MEDIUM:!aNULL:!MD5:!SEED:!IDEA

SSLCertificateFile /etc/letsencrypt/live/cloud.comain.com/cert.pem
SSLCertificateKeyFile /etc/letsencrypt/live/cloud.comain.com/privkey.pem
SSLCertificateChainFile /etc/letsencrypt/live/cloud.comain.com/chain.pem

<Files ~ "\.(cgi|shtml|phtml|php3?)$">
    SSLOptions +StdEnvVars
</Files>
<Directory "/var/www/cgi-bin">
    SSLOptions +StdEnvVars
</Directory>

BrowserMatch "MSIE [2-5]" \
         nokeepalive ssl-unclean-shutdown \
         downgrade-1.0 force-response-1.0

CustomLog logs/ssl_request_log \
      "%t %h %{SSL_PROTOCOL}x %{SSL_CIPHER}x \"%r\" %b"
</VirtualHost>                                  

<VirtualHost *:443>
ServerName office.comain.com:443

SSLEngine on
SSLCertificateFile /etc/letsencrypt/live/office.comain.com/cert.pem
SSLCertificateKeyFile /etc/letsencrypt/live/office.comain.com/privkey.pem
SSLCertificateChainFile /etc/letsencrypt/live/office.comain.com/chain.pem
SSLProtocol             all -SSLv2
SSLCipherSuite HIGH:MEDIUM:!aNULL:!MD5:!SEED:!IDEA
SSLHonorCipherOrder     on

# Encoded slashes need to be allowed
AllowEncodedSlashes NoDecode

# Container uses a unique non-signed certificate
SSLProxyEngine On
SSLProxyVerify None
SSLProxyCheckPeerCN Off
SSLProxyCheckPeerName Off

# keep the host
ProxyPreserveHost On

# static html, js, images, etc. served from loolwsd
# loleaflet is the client part of LibreOffice Online
ProxyPass           /loleaflet https://127.0.0.1:9980/loleaflet retry=0
ProxyPassReverse    /loleaflet https://127.0.0.1:9980/loleaflet

# WOPI discovery URL
ProxyPass           /hosting/discovery https://127.0.0.1:9980/hosting/discovery retry=0
ProxyPassReverse    /hosting/discovery https://127.0.0.1:9980/hosting/discovery

# Main websocket
ProxyPassMatch "/lool/(.*)/ws$" wss://127.0.0.1:9980/lool/$1/ws nocanon

# Admin Console websocket
ProxyPass   /lool/adminws wss://127.0.0.1:9980/lool/adminws

# Download as, Fullscreen presentation and Image upload operations
ProxyPass           /lool https://127.0.0.1:9980/lool
ProxyPassReverse    /lool https://127.0.0.1:9980/lool

ErrorLog logs/ssl_error_log_office
TransferLog logs/ssl_access_log_office
</VirtualHost>

I can’t see any error when i call docker logs.
Has someone any idea what’s going wrong?

It’s seems to be a problem of our corparate proxy where my client is.
At outside it works.

Hello, I have the same problem.

I’m under a corporate proxy.

Could you resolve that?

Hello,

#Edit host traffic local.
#Add host nextclouddomain or collaboradomain
nano /etc/hosts

127.0.0.1 XXX XXX XXX domainenextcloud.com collaboradomain.com

link : Install Nginx + Nextcloud 12 + Php-Fpm + MariaDB 10 + Collabora Online on Centos 7