Can't load the editor in Firefox when Confluence Data Center is running in an IPv6 environment
Platform Notice: Data Center - This article applies to Atlassian products on the Data Center platform.
Note that this knowledge base article was created for the Data Center version of the product. Data Center knowledge base articles for non-Data Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Problem
Users see a 'Can't load the editor' error in Firefox when attempting to edit a page, and Confluence Data Center 6.9 (or later) is running in an IPv6 environment.
Cause
This problem is caused by a raw IPv6 address being used for the Synchrony URL in the Synchrony startup script, for example:
# URL that the browser uses to contact Synchrony
#SYNCHRONY_URL="http://[1234:dal:698:7d01:20ce:53f8:bcf0:ab1d]:8091/synchrony"and in Confluence's bin/setenv file.
#CATALINA_OPTS="-Dsynchrony.service.url=http://[1234:dal:698:7d01:20ce:53f8:bcf0:ab1c]:8091/synchrony/v1 ${CATALINA_OPTS}"The examples above are for Linux, but the same applies in Windows environments.
Workaround
To avoid this problem, you will need to specify the DNS hostname for Synchrony, instead of using the raw IPv6 address.
- Stop Confluence and Synchrony.
Edit the
start-synchrony.sh/start-synchrony.batscript, and specify the DNS hostname for Synchrony. Here's an example:Linux# URL that the browser uses to contact Synchrony SYNCHRONY_URL="http://confluence-ipv6.examplesite.com:8091/synchrony"Windowsrem URL that the browser uses to contact Synchrony set SYNCHRONY_URL=http://confluence-ipv6.examplesite.com:8091/synchronyEdit
<confluence-install-directory>/bin/setenv.shorsetenv.batand update thesynchrony.service.urlsystem property:LinuxCATALINA_OPTS="-Dsynchrony.service.url=http://confluence-ipv6.examplesite.com:8091/synchrony/v1 ${CATALINA_OPTS}"Windowsset CATALINA_OPTS=http://confluence-ipv6.examplesite.com:8091/synchrony/v1 %CATALINA_OPTS%- Restart Synchrony, then restart Confluence.