Unable to access CalDAV: No basic authentication headers were found

Created:

2016-11-16 13:15:22 UTC

Modified:

2017-06-23 07:35:52 UTC

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Unable to access CalDAV: No basic authentication headers were found

Applicable to:

  • Plesk 12.5 for Linux

Symptoms

CalDAV links from Horde webmail are inaccessible:

This XML file does not appear to have any style information associated with it. The document tree is shown below.
<d:error xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
<s:exception>Sabre\\DAV\\Exception\\NotAuthenticated</s:exception>
<s:message>No basic authentication headers were found</s:message>
<s:sabredav-version>1.8.10</s:sabredav-version>
</d:error>

CalDAV service does not allow to log in trying to integrate Horde calendar.

Cause

Internal issue with id #PPPM-4173; the fix is considered to be included in one of the next Plesk updates.

Resolution

  1. Add directive FcgidPassHeader Authorization into fcgid.conf configuration file:
    • For Debian:
      # grep FcgidPassHeader /etc/apache2/mods-available/fcgid.conf
      FcgidPassHeader Authorization
    • For CentOS:
      # grep FcgidPassHeader /etc/httpd/conf.d/fcgid.conf
      FcgidPassHeader Authorization
  2. Restart Apache service:
    • For Debian:
      # service apache2 restart
    • For CentOS 7:
      # systemctl restart httpd.service
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